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Finding the Fourth Proportional to 462,003.60, 693,442.80 and 395,518.80

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Solution

The fourth proportional to 462,003.60, 693,442.80 and 395,518.80 is: 593,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,003.60 : 693,442.80 = 395,518.80 : x
  2. Step 2: Convert to fraction form
    462,003.60/693,442.80 = 395,518.80/x
  3. Step 3: Cross multiply
    462,003.60x = 693,442.80 × 395,518.80
  4. Step 4: Simplify right side
    462,003.60x = 274,269,664,124.64
  5. Step 5: Solve for x
    x = 274,269,664,124.64/462,003.60
  6. Step 6: Final answer
    x = 593,652.66

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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.