Home / 714,191.47-985,581.52-391,906.96

Finding the Fourth Proportional to 714,191.47, 985,581.52 and 391,906.96

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Solution

The fourth proportional to 714,191.47, 985,581.52 and 391,906.96 is: 540,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,191.47 : 985,581.52 = 391,906.96 : x
  2. Step 2: Convert to fraction form
    714,191.47/985,581.52 = 391,906.96/x
  3. Step 3: Cross multiply
    714,191.47x = 985,581.52 × 391,906.96
  4. Step 4: Simplify right side
    714,191.47x = 386,256,257,335.38
  5. Step 5: Solve for x
    x = 386,256,257,335.38/714,191.47
  6. Step 6: Final answer
    x = 540,830.12

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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.