Home / 1,386,027.10-2,079,040.65-439,396.30

Finding the Fourth Proportional to 1,386,027.10, 2,079,040.65 and 439,396.30

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Solution

The fourth proportional to 1,386,027.10, 2,079,040.65 and 439,396.30 is: 659,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,027.10 : 2,079,040.65 = 439,396.30 : x
  2. Step 2: Convert to fraction form
    1,386,027.10/2,079,040.65 = 439,396.30/x
  3. Step 3: Cross multiply
    1,386,027.10x = 2,079,040.65 × 439,396.30
  4. Step 4: Simplify right side
    1,386,027.10x = 913,522,769,159.60
  5. Step 5: Solve for x
    x = 913,522,769,159.60/1,386,027.10
  6. Step 6: Final answer
    x = 659,094.45

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Double scale
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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.