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Finding the Fourth Proportional to 876,654.20, 1,314,981.30 and 734,936.60

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Solution

The fourth proportional to 876,654.20, 1,314,981.30 and 734,936.60 is: 1,102,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,654.20 : 1,314,981.30 = 734,936.60 : x
  2. Step 2: Convert to fraction form
    876,654.20/1,314,981.30 = 734,936.60/x
  3. Step 3: Cross multiply
    876,654.20x = 1,314,981.30 × 734,936.60
  4. Step 4: Simplify right side
    876,654.20x = 966,427,885,685.58
  5. Step 5: Solve for x
    x = 966,427,885,685.58/876,654.20
  6. Step 6: Final answer
    x = 1,102,404.90

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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.