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Finding the Fourth Proportional to 537,894,713.88, 747,305,978.13 and 531,444,988.44

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Solution

The fourth proportional to 537,894,713.88, 747,305,978.13 and 531,444,988.44 is: 738,345,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,894,713.88 : 747,305,978.13 = 531,444,988.44 : x
  2. Step 2: Convert to fraction form
    537,894,713.88/747,305,978.13 = 531,444,988.44/x
  3. Step 3: Cross multiply
    537,894,713.88x = 747,305,978.13 × 531,444,988.44
  4. Step 4: Simplify right side
    537,894,713.88x = 397,152,016,908,440,768
  5. Step 5: Solve for x
    x = 397,152,016,908,440,768/537,894,713.88
  6. Step 6: Final answer
    x = 738,345,268.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.