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Finding the Fourth Proportional to 731,478.80, 1,097,340.06 and 251,687

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Solution

The fourth proportional to 731,478.80, 1,097,340.06 and 251,687 is: 377,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,478.80 : 1,097,340.06 = 251,687 : x
  2. Step 2: Convert to fraction form
    731,478.80/1,097,340.06 = 251,687/x
  3. Step 3: Cross multiply
    731,478.80x = 1,097,340.06 × 251,687
  4. Step 4: Simplify right side
    731,478.80x = 276,186,227,681.22
  5. Step 5: Solve for x
    x = 276,186,227,681.22/731,478.80
  6. Step 6: Final answer
    x = 377,572.43

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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.