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Finding the Fourth Proportional to 573,645.60, 860,857.20 and 373,478.40

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Solution

The fourth proportional to 573,645.60, 860,857.20 and 373,478.40 is: 560,470.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,645.60 : 860,857.20 = 373,478.40 : x
  2. Step 2: Convert to fraction form
    573,645.60/860,857.20 = 373,478.40/x
  3. Step 3: Cross multiply
    573,645.60x = 860,857.20 × 373,478.40
  4. Step 4: Simplify right side
    573,645.60x = 321,511,569,684.48
  5. Step 5: Solve for x
    x = 321,511,569,684.48/573,645.60
  6. Step 6: Final answer
    x = 560,470.73

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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.