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Finding the Fourth Proportional to 982,681,926.57, 1,474,754,970.94 and 721,042,572.04

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Solution

The fourth proportional to 982,681,926.57, 1,474,754,970.94 and 721,042,572.04 is: 1,082,101,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,681,926.57 : 1,474,754,970.94 = 721,042,572.04 : x
  2. Step 2: Convert to fraction form
    982,681,926.57/1,474,754,970.94 = 721,042,572.04/x
  3. Step 3: Cross multiply
    982,681,926.57x = 1,474,754,970.94 × 721,042,572.04
  4. Step 4: Simplify right side
    982,681,926.57x = 1,063,361,117,369,863,552
  5. Step 5: Solve for x
    x = 1,063,361,117,369,863,552/982,681,926.57
  6. Step 6: Final answer
    x = 1,082,101,022.33

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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.