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Finding the Fourth Proportional to 713,951.10, 1,070,926.65 and 682,458.30

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Solution

The fourth proportional to 713,951.10, 1,070,926.65 and 682,458.30 is: 1,023,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,951.10 : 1,070,926.65 = 682,458.30 : x
  2. Step 2: Convert to fraction form
    713,951.10/1,070,926.65 = 682,458.30/x
  3. Step 3: Cross multiply
    713,951.10x = 1,070,926.65 × 682,458.30
  4. Step 4: Simplify right side
    713,951.10x = 730,862,780,983.70
  5. Step 5: Solve for x
    x = 730,862,780,983.70/713,951.10
  6. Step 6: Final answer
    x = 1,023,687.45

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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.