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Finding the Fourth Proportional to 703,610.60, 1,053,428.70 and 547,658.60

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Solution

The fourth proportional to 703,610.60, 1,053,428.70 and 547,658.60 is: 819,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,610.60 : 1,053,428.70 = 547,658.60 : x
  2. Step 2: Convert to fraction form
    703,610.60/1,053,428.70 = 547,658.60/x
  3. Step 3: Cross multiply
    703,610.60x = 1,053,428.70 × 547,658.60
  4. Step 4: Simplify right side
    703,610.60x = 576,919,287,041.82
  5. Step 5: Solve for x
    x = 576,919,287,041.82/703,610.60
  6. Step 6: Final answer
    x = 819,941.15

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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.