Home / 714,229.85-985,665.61-391,951.48

Finding the Fourth Proportional to 714,229.85, 985,665.61 and 391,951.48

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Solution

The fourth proportional to 714,229.85, 985,665.61 and 391,951.48 is: 540,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,229.85 : 985,665.61 = 391,951.48 : x
  2. Step 2: Convert to fraction form
    714,229.85/985,665.61 = 391,951.48/x
  3. Step 3: Cross multiply
    714,229.85x = 985,665.61 × 391,951.48
  4. Step 4: Simplify right side
    714,229.85x = 386,333,087,736.52
  5. Step 5: Solve for x
    x = 386,333,087,736.52/714,229.85
  6. Step 6: Final answer
    x = 540,908.63

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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.