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Finding the Fourth Proportional to 615,191.60, 922,131.30 and 235,965.80

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Solution

The fourth proportional to 615,191.60, 922,131.30 and 235,965.80 is: 353,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,191.60 : 922,131.30 = 235,965.80 : x
  2. Step 2: Convert to fraction form
    615,191.60/922,131.30 = 235,965.80/x
  3. Step 3: Cross multiply
    615,191.60x = 922,131.30 × 235,965.80
  4. Step 4: Simplify right side
    615,191.60x = 217,591,449,909.54
  5. Step 5: Solve for x
    x = 217,591,449,909.54/615,191.60
  6. Step 6: Final answer
    x = 353,697.04

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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.