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Finding the Fourth Proportional to 341,925.90, 513,310.05 and 215,565.90

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Solution

The fourth proportional to 341,925.90, 513,310.05 and 215,565.90 is: 323,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,925.90 : 513,310.05 = 215,565.90 : x
  2. Step 2: Convert to fraction form
    341,925.90/513,310.05 = 215,565.90/x
  3. Step 3: Cross multiply
    341,925.90x = 513,310.05 × 215,565.90
  4. Step 4: Simplify right side
    341,925.90x = 110,652,142,907.30
  5. Step 5: Solve for x
    x = 110,652,142,907.30/341,925.90
  6. Step 6: Final answer
    x = 323,614.39

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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.