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Finding the Fourth Proportional to 692,471.40, 955,658.58 and 386,607.92

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Solution

The fourth proportional to 692,471.40, 955,658.58 and 386,607.92 is: 533,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,471.40 : 955,658.58 = 386,607.92 : x
  2. Step 2: Convert to fraction form
    692,471.40/955,658.58 = 386,607.92/x
  3. Step 3: Cross multiply
    692,471.40x = 955,658.58 × 386,607.92
  4. Step 4: Simplify right side
    692,471.40x = 369,465,175,843.95
  5. Step 5: Solve for x
    x = 369,465,175,843.95/692,471.40
  6. Step 6: Final answer
    x = 533,545.75

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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.