Home / 392,680.52-541,887-231,545.60

Finding the Fourth Proportional to 392,680.52, 541,887 and 231,545.60

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Solution

The fourth proportional to 392,680.52, 541,887 and 231,545.60 is: 319,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,680.52 : 541,887 = 231,545.60 : x
  2. Step 2: Convert to fraction form
    392,680.52/541,887 = 231,545.60/x
  3. Step 3: Cross multiply
    392,680.52x = 541,887 × 231,545.60
  4. Step 4: Simplify right side
    392,680.52x = 125,471,550,547.20
  5. Step 5: Solve for x
    x = 125,471,550,547.20/392,680.52
  6. Step 6: Final answer
    x = 319,525.78

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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.