Home / 392,864.25-542,127.15-231,682.35

Finding the Fourth Proportional to 392,864.25, 542,127.15 and 231,682.35

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Solution

The fourth proportional to 392,864.25, 542,127.15 and 231,682.35 is: 319,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,864.25 : 542,127.15 = 231,682.35 : x
  2. Step 2: Convert to fraction form
    392,864.25/542,127.15 = 231,682.35/x
  3. Step 3: Cross multiply
    392,864.25x = 542,127.15 × 231,682.35
  4. Step 4: Simplify right side
    392,864.25x = 125,601,292,110.80
  5. Step 5: Solve for x
    x = 125,601,292,110.80/392,864.25
  6. Step 6: Final answer
    x = 319,706.60

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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.