Home / 861,313.60-1,188,601.08-479,340.38

Finding the Fourth Proportional to 861,313.60, 1,188,601.08 and 479,340.38

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Solution

The fourth proportional to 861,313.60, 1,188,601.08 and 479,340.38 is: 661,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,313.60 : 1,188,601.08 = 479,340.38 : x
  2. Step 2: Convert to fraction form
    861,313.60/1,188,601.08 = 479,340.38/x
  3. Step 3: Cross multiply
    861,313.60x = 1,188,601.08 × 479,340.38
  4. Step 4: Simplify right side
    861,313.60x = 569,744,493,355.61
  5. Step 5: Solve for x
    x = 569,744,493,355.61/861,313.60
  6. Step 6: Final answer
    x = 661,483.22

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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.