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Finding the Fourth Proportional to 622,884.60, 934,326.90 and 616,979.70

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Solution

The fourth proportional to 622,884.60, 934,326.90 and 616,979.70 is: 925,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,884.60 : 934,326.90 = 616,979.70 : x
  2. Step 2: Convert to fraction form
    622,884.60/934,326.90 = 616,979.70/x
  3. Step 3: Cross multiply
    622,884.60x = 934,326.90 × 616,979.70
  4. Step 4: Simplify right side
    622,884.60x = 576,460,730,463.93
  5. Step 5: Solve for x
    x = 576,460,730,463.93/622,884.60
  6. Step 6: Final answer
    x = 925,469.55

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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.