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Finding the Fourth Proportional to 363,915.83, 502,197.15 and 198,345.19

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Solution

The fourth proportional to 363,915.83, 502,197.15 and 198,345.19 is: 273,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,915.83 : 502,197.15 = 198,345.19 : x
  2. Step 2: Convert to fraction form
    363,915.83/502,197.15 = 198,345.19/x
  3. Step 3: Cross multiply
    363,915.83x = 502,197.15 × 198,345.19
  4. Step 4: Simplify right side
    363,915.83x = 99,608,389,134.21
  5. Step 5: Solve for x
    x = 99,608,389,134.21/363,915.83
  6. Step 6: Final answer
    x = 273,712.71

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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.