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Finding the Fourth Proportional to 621,641.28, 932,616.96 and 200,959.68

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Solution

The fourth proportional to 621,641.28, 932,616.96 and 200,959.68 is: 301,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,641.28 : 932,616.96 = 200,959.68 : x
  2. Step 2: Convert to fraction form
    621,641.28/932,616.96 = 200,959.68/x
  3. Step 3: Cross multiply
    621,641.28x = 932,616.96 × 200,959.68
  4. Step 4: Simplify right side
    621,641.28x = 187,418,405,844.17
  5. Step 5: Solve for x
    x = 187,418,405,844.17/621,641.28
  6. Step 6: Final answer
    x = 301,489.64

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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.