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Finding the Fourth Proportional to 541,159.71, 812,019.67 and 392,625.96

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Solution

The fourth proportional to 541,159.71, 812,019.67 and 392,625.96 is: 589,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,159.71 : 812,019.67 = 392,625.96 : x
  2. Step 2: Convert to fraction form
    541,159.71/812,019.67 = 392,625.96/x
  3. Step 3: Cross multiply
    541,159.71x = 812,019.67 × 392,625.96
  4. Step 4: Simplify right side
    541,159.71x = 318,820,002,472.63
  5. Step 5: Solve for x
    x = 318,820,002,472.63/541,159.71
  6. Step 6: Final answer
    x = 589,142.16

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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.