Home / 694,912,603.60-1,042,545,340.86-321,689,560.96

Finding the Fourth Proportional to 694,912,603.60, 1,042,545,340.86 and 321,689,560.96

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Solution

The fourth proportional to 694,912,603.60, 1,042,545,340.86 and 321,689,560.96 is: 482,616,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,912,603.60 : 1,042,545,340.86 = 321,689,560.96 : x
  2. Step 2: Convert to fraction form
    694,912,603.60/1,042,545,340.86 = 321,689,560.96/x
  3. Step 3: Cross multiply
    694,912,603.60x = 1,042,545,340.86 × 321,689,560.96
  4. Step 4: Simplify right side
    694,912,603.60x = 335,375,952,982,146,944
  5. Step 5: Solve for x
    x = 335,375,952,982,146,944/694,912,603.60
  6. Step 6: Final answer
    x = 482,616,017.10

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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.