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Finding the Fourth Proportional to 580,848.40, 870,106.20 and 331,238.80

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Solution

The fourth proportional to 580,848.40, 870,106.20 and 331,238.80 is: 496,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,848.40 : 870,106.20 = 331,238.80 : x
  2. Step 2: Convert to fraction form
    580,848.40/870,106.20 = 331,238.80/x
  3. Step 3: Cross multiply
    580,848.40x = 870,106.20 × 331,238.80
  4. Step 4: Simplify right side
    580,848.40x = 288,212,933,560.56
  5. Step 5: Solve for x
    x = 288,212,933,560.56/580,848.40
  6. Step 6: Final answer
    x = 496,193.04

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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.