Home / 714,294.76-985,723.66-392,010.06

Finding the Fourth Proportional to 714,294.76, 985,723.66 and 392,010.06

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Solution

The fourth proportional to 714,294.76, 985,723.66 and 392,010.06 is: 540,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,294.76 : 985,723.66 = 392,010.06 : x
  2. Step 2: Convert to fraction form
    714,294.76/985,723.66 = 392,010.06/x
  3. Step 3: Cross multiply
    714,294.76x = 985,723.66 × 392,010.06
  4. Step 4: Simplify right side
    714,294.76x = 386,413,591,100.02
  5. Step 5: Solve for x
    x = 386,413,591,100.02/714,294.76
  6. Step 6: Final answer
    x = 540,972.18

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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.