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Finding the Fourth Proportional to 418,513.06, 627,572.72 and 292,295.82

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Solution

The fourth proportional to 418,513.06, 627,572.72 and 292,295.82 is: 438,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,513.06 : 627,572.72 = 292,295.82 : x
  2. Step 2: Convert to fraction form
    418,513.06/627,572.72 = 292,295.82/x
  3. Step 3: Cross multiply
    418,513.06x = 627,572.72 × 292,295.82
  4. Step 4: Simplify right side
    418,513.06x = 183,436,882,802.03
  5. Step 5: Solve for x
    x = 183,436,882,802.03/418,513.06
  6. Step 6: Final answer
    x = 438,306.23

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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.