Home / 621,909.27-932,869.13-172,665.17

Finding the Fourth Proportional to 621,909.27, 932,869.13 and 172,665.17

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Solution

The fourth proportional to 621,909.27, 932,869.13 and 172,665.17 is: 258,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,909.27 : 932,869.13 = 172,665.17 : x
  2. Step 2: Convert to fraction form
    621,909.27/932,869.13 = 172,665.17/x
  3. Step 3: Cross multiply
    621,909.27x = 932,869.13 × 172,665.17
  4. Step 4: Simplify right side
    621,909.27x = 161,074,006,919.20
  5. Step 5: Solve for x
    x = 161,074,006,919.20/621,909.27
  6. Step 6: Final answer
    x = 258,999.21

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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.