Home / 1,183,723,145.60-1,775,584,718.40-639,527,561.60

Finding the Fourth Proportional to 1,183,723,145.60, 1,775,584,718.40 and 639,527,561.60

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Solution

The fourth proportional to 1,183,723,145.60, 1,775,584,718.40 and 639,527,561.60 is: 959,291,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183,723,145.60 : 1,775,584,718.40 = 639,527,561.60 : x
  2. Step 2: Convert to fraction form
    1,183,723,145.60/1,775,584,718.40 = 639,527,561.60/x
  3. Step 3: Cross multiply
    1,183,723,145.60x = 1,775,584,718.40 × 639,527,561.60
  4. Step 4: Simplify right side
    1,183,723,145.60x = 1,135,535,365,372,574,720
  5. Step 5: Solve for x
    x = 1,135,535,365,372,574,720/1,183,723,145.60
  6. Step 6: Final answer
    x = 959,291,342.40

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Half scale
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Double scale
Find fourth proportional to 1,183,723,146.60, 1,775,584,719.90 and 639,527,562.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.