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Finding the Fourth Proportional to 737,116.70, 1,105,452.03 and 287,715.74

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Solution

The fourth proportional to 737,116.70, 1,105,452.03 and 287,715.74 is: 431,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,116.70 : 1,105,452.03 = 287,715.74 : x
  2. Step 2: Convert to fraction form
    737,116.70/1,105,452.03 = 287,715.74/x
  3. Step 3: Cross multiply
    737,116.70x = 1,105,452.03 × 287,715.74
  4. Step 4: Simplify right side
    737,116.70x = 318,055,948,845.95
  5. Step 5: Solve for x
    x = 318,055,948,845.95/737,116.70
  6. Step 6: Final answer
    x = 431,486.56

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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.