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Finding the Fourth Proportional to 408,184.67, 611,695.54 and 300,723.53

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Solution

The fourth proportional to 408,184.67, 611,695.54 and 300,723.53 is: 450,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,184.67 : 611,695.54 = 300,723.53 : x
  2. Step 2: Convert to fraction form
    408,184.67/611,695.54 = 300,723.53/x
  3. Step 3: Cross multiply
    408,184.67x = 611,695.54 × 300,723.53
  4. Step 4: Simplify right side
    408,184.67x = 183,951,238,263.77
  5. Step 5: Solve for x
    x = 183,951,238,263.77/408,184.67
  6. Step 6: Final answer
    x = 450,656.90

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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.