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Finding the Fourth Proportional to 988,754,943.88, 1,364,454,854.22 and 542,717,693.56

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Solution

The fourth proportional to 988,754,943.88, 1,364,454,854.22 and 542,717,693.56 is: 748,935,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,754,943.88 : 1,364,454,854.22 = 542,717,693.56 : x
  2. Step 2: Convert to fraction form
    988,754,943.88/1,364,454,854.22 = 542,717,693.56/x
  3. Step 3: Cross multiply
    988,754,943.88x = 1,364,454,854.22 × 542,717,693.56
  4. Step 4: Simplify right side
    988,754,943.88x = 740,513,791,449,024,384
  5. Step 5: Solve for x
    x = 740,513,791,449,024,384/988,754,943.88
  6. Step 6: Final answer
    x = 748,935,614.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.