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Finding the Fourth Proportional to 377,778.16, 567,454.20 and 318,729.52

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Solution

The fourth proportional to 377,778.16, 567,454.20 and 318,729.52 is: 478,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,778.16 : 567,454.20 = 318,729.52 : x
  2. Step 2: Convert to fraction form
    377,778.16/567,454.20 = 318,729.52/x
  3. Step 3: Cross multiply
    377,778.16x = 567,454.20 × 318,729.52
  4. Step 4: Simplify right side
    377,778.16x = 180,864,404,787.98
  5. Step 5: Solve for x
    x = 180,864,404,787.98/377,778.16
  6. Step 6: Final answer
    x = 478,758.23

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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.