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Finding the Fourth Proportional to 768,223.83, 1,060,149.08 and 424,059.96

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Solution

The fourth proportional to 768,223.83, 1,060,149.08 and 424,059.96 is: 585,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,223.83 : 1,060,149.08 = 424,059.96 : x
  2. Step 2: Convert to fraction form
    768,223.83/1,060,149.08 = 424,059.96/x
  3. Step 3: Cross multiply
    768,223.83x = 1,060,149.08 × 424,059.96
  4. Step 4: Simplify right side
    768,223.83x = 449,566,777,518.99
  5. Step 5: Solve for x
    x = 449,566,777,518.99/768,223.83
  6. Step 6: Final answer
    x = 585,202.85

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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.