Home / 698,747.22-964,305.38-392,919.89

Finding the Fourth Proportional to 698,747.22, 964,305.38 and 392,919.89

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Solution

The fourth proportional to 698,747.22, 964,305.38 and 392,919.89 is: 542,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,747.22 : 964,305.38 = 392,919.89 : x
  2. Step 2: Convert to fraction form
    698,747.22/964,305.38 = 392,919.89/x
  3. Step 3: Cross multiply
    698,747.22x = 964,305.38 × 392,919.89
  4. Step 4: Simplify right side
    698,747.22x = 378,894,759,996.78
  5. Step 5: Solve for x
    x = 378,894,759,996.78/698,747.22
  6. Step 6: Final answer
    x = 542,248.68

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1.5x scale

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.