Home / 861,248.72-1,188,514.68-479,268.92

Finding the Fourth Proportional to 861,248.72, 1,188,514.68 and 479,268.92

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Solution

The fourth proportional to 861,248.72, 1,188,514.68 and 479,268.92 is: 661,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,248.72 : 1,188,514.68 = 479,268.92 : x
  2. Step 2: Convert to fraction form
    861,248.72/1,188,514.68 = 479,268.92/x
  3. Step 3: Cross multiply
    861,248.72x = 1,188,514.68 × 479,268.92
  4. Step 4: Simplify right side
    861,248.72x = 569,618,147,087.75
  5. Step 5: Solve for x
    x = 569,618,147,087.75/861,248.72
  6. Step 6: Final answer
    x = 661,386.35

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Double scale
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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.