Home / 861,481.53-1,188,844.56-479,500.11

Finding the Fourth Proportional to 861,481.53, 1,188,844.56 and 479,500.11

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Solution

The fourth proportional to 861,481.53, 1,188,844.56 and 479,500.11 is: 661,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,481.53 : 1,188,844.56 = 479,500.11 : x
  2. Step 2: Convert to fraction form
    861,481.53/1,188,844.56 = 479,500.11/x
  3. Step 3: Cross multiply
    861,481.53x = 1,188,844.56 × 479,500.11
  4. Step 4: Simplify right side
    861,481.53x = 570,051,097,292.90
  5. Step 5: Solve for x
    x = 570,051,097,292.90/861,481.53
  6. Step 6: Final answer
    x = 661,710.18

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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.