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Finding the Fourth Proportional to 591,781.80, 888,110.10 and 392,035.80

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Solution

The fourth proportional to 591,781.80, 888,110.10 and 392,035.80 is: 588,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,781.80 : 888,110.10 = 392,035.80 : x
  2. Step 2: Convert to fraction form
    591,781.80/888,110.10 = 392,035.80/x
  3. Step 3: Cross multiply
    591,781.80x = 888,110.10 × 392,035.80
  4. Step 4: Simplify right side
    591,781.80x = 348,170,953,541.58
  5. Step 5: Solve for x
    x = 348,170,953,541.58/591,781.80
  6. Step 6: Final answer
    x = 588,343.46

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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.