Home / 912,155.60-1,368,233.40-379,499.60

Finding the Fourth Proportional to 912,155.60, 1,368,233.40 and 379,499.60

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Solution

The fourth proportional to 912,155.60, 1,368,233.40 and 379,499.60 is: 569,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,155.60 : 1,368,233.40 = 379,499.60 : x
  2. Step 2: Convert to fraction form
    912,155.60/1,368,233.40 = 379,499.60/x
  3. Step 3: Cross multiply
    912,155.60x = 1,368,233.40 × 379,499.60
  4. Step 4: Simplify right side
    912,155.60x = 519,244,028,006.64
  5. Step 5: Solve for x
    x = 519,244,028,006.64/912,155.60
  6. Step 6: Final answer
    x = 569,249.40

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Double scale
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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.