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Finding the Fourth Proportional to 572,080.22, 789,470.70 and 317,472.38

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Solution

The fourth proportional to 572,080.22, 789,470.70 and 317,472.38 is: 438,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,080.22 : 789,470.70 = 317,472.38 : x
  2. Step 2: Convert to fraction form
    572,080.22/789,470.70 = 317,472.38/x
  3. Step 3: Cross multiply
    572,080.22x = 789,470.70 × 317,472.38
  4. Step 4: Simplify right side
    572,080.22x = 250,635,141,677.69
  5. Step 5: Solve for x
    x = 250,635,141,677.69/572,080.22
  6. Step 6: Final answer
    x = 438,111.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.