Home / 865,728.80-1,298,593.21-234,642.61

Finding the Fourth Proportional to 865,728.80, 1,298,593.21 and 234,642.61

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Solution

The fourth proportional to 865,728.80, 1,298,593.21 and 234,642.61 is: 351,963.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,728.80 : 1,298,593.21 = 234,642.61 : x
  2. Step 2: Convert to fraction form
    865,728.80/1,298,593.21 = 234,642.61/x
  3. Step 3: Cross multiply
    865,728.80x = 1,298,593.21 × 234,642.61
  4. Step 4: Simplify right side
    865,728.80x = 304,705,300,122.68
  5. Step 5: Solve for x
    x = 304,705,300,122.68/865,728.80
  6. Step 6: Final answer
    x = 351,963.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.