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Finding the Fourth Proportional to 363,710.80, 545,663.40 and 324,539.20

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Solution

The fourth proportional to 363,710.80, 545,663.40 and 324,539.20 is: 486,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,710.80 : 545,663.40 = 324,539.20 : x
  2. Step 2: Convert to fraction form
    363,710.80/545,663.40 = 324,539.20/x
  3. Step 3: Cross multiply
    363,710.80x = 545,663.40 × 324,539.20
  4. Step 4: Simplify right side
    363,710.80x = 177,089,163,305.28
  5. Step 5: Solve for x
    x = 177,089,163,305.28/363,710.80
  6. Step 6: Final answer
    x = 486,895.53

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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.