Home / 695,778.60-1,042,890.30-396,402.60

Finding the Fourth Proportional to 695,778.60, 1,042,890.30 and 396,402.60

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Solution

The fourth proportional to 695,778.60, 1,042,890.30 and 396,402.60 is: 594,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,778.60 : 1,042,890.30 = 396,402.60 : x
  2. Step 2: Convert to fraction form
    695,778.60/1,042,890.30 = 396,402.60/x
  3. Step 3: Cross multiply
    695,778.60x = 1,042,890.30 × 396,402.60
  4. Step 4: Simplify right side
    695,778.60x = 413,404,426,434.78
  5. Step 5: Solve for x
    x = 413,404,426,434.78/695,778.60
  6. Step 6: Final answer
    x = 594,160.88

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1.5x scale

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.