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Finding the Fourth Proportional to 624,613.42, 861,959.37 and 338,127.22

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Solution

The fourth proportional to 624,613.42, 861,959.37 and 338,127.22 is: 466,611.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,613.42 : 861,959.37 = 338,127.22 : x
  2. Step 2: Convert to fraction form
    624,613.42/861,959.37 = 338,127.22/x
  3. Step 3: Cross multiply
    624,613.42x = 861,959.37 × 338,127.22
  4. Step 4: Simplify right side
    624,613.42x = 291,451,925,531.05
  5. Step 5: Solve for x
    x = 291,451,925,531.05/624,613.42
  6. Step 6: Final answer
    x = 466,611.69

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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.