Home / 627,500.71-865,632.17-409,836.91

Finding the Fourth Proportional to 627,500.71, 865,632.17 and 409,836.91

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Solution

The fourth proportional to 627,500.71, 865,632.17 and 409,836.91 is: 565,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,500.71 : 865,632.17 = 409,836.91 : x
  2. Step 2: Convert to fraction form
    627,500.71/865,632.17 = 409,836.91/x
  3. Step 3: Cross multiply
    627,500.71x = 865,632.17 × 409,836.91
  4. Step 4: Simplify right side
    627,500.71x = 354,768,012,609.91
  5. Step 5: Solve for x
    x = 354,768,012,609.91/627,500.71
  6. Step 6: Final answer
    x = 565,366.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.