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Finding the Fourth Proportional to 573,846.30, 860,769.45 and 485,272.80

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Solution

The fourth proportional to 573,846.30, 860,769.45 and 485,272.80 is: 727,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,846.30 : 860,769.45 = 485,272.80 : x
  2. Step 2: Convert to fraction form
    573,846.30/860,769.45 = 485,272.80/x
  3. Step 3: Cross multiply
    573,846.30x = 860,769.45 × 485,272.80
  4. Step 4: Simplify right side
    573,846.30x = 417,708,001,155.96
  5. Step 5: Solve for x
    x = 417,708,001,155.96/573,846.30
  6. Step 6: Final answer
    x = 727,909.20

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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.