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Finding the Fourth Proportional to 541,331.38, 812,079.06 and 392,693.29

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Solution

The fourth proportional to 541,331.38, 812,079.06 and 392,693.29 is: 589,099.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,331.38 : 812,079.06 = 392,693.29 : x
  2. Step 2: Convert to fraction form
    541,331.38/812,079.06 = 392,693.29/x
  3. Step 3: Cross multiply
    541,331.38x = 812,079.06 × 392,693.29
  4. Step 4: Simplify right side
    541,331.38x = 318,897,997,811.51
  5. Step 5: Solve for x
    x = 318,897,997,811.51/541,331.38
  6. Step 6: Final answer
    x = 589,099.41

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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.