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Finding the Fourth Proportional to 561,763.53, 842,770.17 and 262,080.63

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Solution

The fourth proportional to 561,763.53, 842,770.17 and 262,080.63 is: 393,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,763.53 : 842,770.17 = 262,080.63 : x
  2. Step 2: Convert to fraction form
    561,763.53/842,770.17 = 262,080.63/x
  3. Step 3: Cross multiply
    561,763.53x = 842,770.17 × 262,080.63
  4. Step 4: Simplify right side
    561,763.53x = 220,873,737,098.81
  5. Step 5: Solve for x
    x = 220,873,737,098.81/561,763.53
  6. Step 6: Final answer
    x = 393,179.20

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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.