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Finding the Fourth Proportional to 541,171.62, 812,037.40 and 392,637.87

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Solution

The fourth proportional to 541,171.62, 812,037.40 and 392,637.87 is: 589,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,171.62 : 812,037.40 = 392,637.87 : x
  2. Step 2: Convert to fraction form
    541,171.62/812,037.40 = 392,637.87/x
  3. Step 3: Cross multiply
    541,171.62x = 812,037.40 × 392,637.87
  4. Step 4: Simplify right side
    541,171.62x = 318,836,635,096.34
  5. Step 5: Solve for x
    x = 318,836,635,096.34/541,171.62
  6. Step 6: Final answer
    x = 589,159.93

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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.