Home / 681,386.20-1,022,468.10-260,963.80

Finding the Fourth Proportional to 681,386.20, 1,022,468.10 and 260,963.80

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Solution

The fourth proportional to 681,386.20, 1,022,468.10 and 260,963.80 is: 391,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,386.20 : 1,022,468.10 = 260,963.80 : x
  2. Step 2: Convert to fraction form
    681,386.20/1,022,468.10 = 260,963.80/x
  3. Step 3: Cross multiply
    681,386.20x = 1,022,468.10 × 260,963.80
  4. Step 4: Simplify right side
    681,386.20x = 266,827,160,754.78
  5. Step 5: Solve for x
    x = 266,827,160,754.78/681,386.20
  6. Step 6: Final answer
    x = 391,594.61

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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.