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Finding the Fourth Proportional to 374,486.91, 516,792.20 and 204,721.17

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Solution

The fourth proportional to 374,486.91, 516,792.20 and 204,721.17 is: 282,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,486.91 : 516,792.20 = 204,721.17 : x
  2. Step 2: Convert to fraction form
    374,486.91/516,792.20 = 204,721.17/x
  3. Step 3: Cross multiply
    374,486.91x = 516,792.20 × 204,721.17
  4. Step 4: Simplify right side
    374,486.91x = 105,798,302,807.27
  5. Step 5: Solve for x
    x = 105,798,302,807.27/374,486.91
  6. Step 6: Final answer
    x = 282,515.36

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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.