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Finding the Fourth Proportional to 621,672.66, 932,508.98 and 200,948.54

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Solution

The fourth proportional to 621,672.66, 932,508.98 and 200,948.54 is: 301,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,672.66 : 932,508.98 = 200,948.54 : x
  2. Step 2: Convert to fraction form
    621,672.66/932,508.98 = 200,948.54/x
  3. Step 3: Cross multiply
    621,672.66x = 932,508.98 × 200,948.54
  4. Step 4: Simplify right side
    621,672.66x = 187,386,318,067.89
  5. Step 5: Solve for x
    x = 187,386,318,067.89/621,672.66
  6. Step 6: Final answer
    x = 301,422.81

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Double scale
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Similar ratio
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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.