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Finding the Fourth Proportional to 567,862.16, 851,793.72 and 318,719.12

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Solution

The fourth proportional to 567,862.16, 851,793.72 and 318,719.12 is: 478,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,862.16 : 851,793.72 = 318,719.12 : x
  2. Step 2: Convert to fraction form
    567,862.16/851,793.72 = 318,719.12/x
  3. Step 3: Cross multiply
    567,862.16x = 851,793.72 × 318,719.12
  4. Step 4: Simplify right side
    567,862.16x = 271,482,944,859.93
  5. Step 5: Solve for x
    x = 271,482,944,859.93/567,862.16
  6. Step 6: Final answer
    x = 478,078.95

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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.