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Finding the Fourth Proportional to 625,893,955.61, 863,735,358.39 and 343,654,677.37

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Solution

The fourth proportional to 625,893,955.61, 863,735,358.39 and 343,654,677.37 is: 474,244,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,893,955.61 : 863,735,358.39 = 343,654,677.37 : x
  2. Step 2: Convert to fraction form
    625,893,955.61/863,735,358.39 = 343,654,677.37/x
  3. Step 3: Cross multiply
    625,893,955.61x = 863,735,358.39 × 343,654,677.37
  4. Step 4: Simplify right side
    625,893,955.61x = 296,826,695,920,367,744
  5. Step 5: Solve for x
    x = 296,826,695,920,367,744/625,893,955.61
  6. Step 6: Final answer
    x = 474,244,387.99

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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.