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Finding the Fourth Proportional to 560,351.26, 773,281.06 and 318,633.85

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Solution

The fourth proportional to 560,351.26, 773,281.06 and 318,633.85 is: 439,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,351.26 : 773,281.06 = 318,633.85 : x
  2. Step 2: Convert to fraction form
    560,351.26/773,281.06 = 318,633.85/x
  3. Step 3: Cross multiply
    560,351.26x = 773,281.06 × 318,633.85
  4. Step 4: Simplify right side
    560,351.26x = 246,393,521,279.88
  5. Step 5: Solve for x
    x = 246,393,521,279.88/560,351.26
  6. Step 6: Final answer
    x = 439,712.62

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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.