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Finding the Fourth Proportional to 408,066.60, 612,301.05 and 183,585.90

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Solution

The fourth proportional to 408,066.60, 612,301.05 and 183,585.90 is: 275,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,066.60 : 612,301.05 = 183,585.90 : x
  2. Step 2: Convert to fraction form
    408,066.60/612,301.05 = 183,585.90/x
  3. Step 3: Cross multiply
    408,066.60x = 612,301.05 × 183,585.90
  4. Step 4: Simplify right side
    408,066.60x = 112,409,839,335.20
  5. Step 5: Solve for x
    x = 112,409,839,335.20/408,066.60
  6. Step 6: Final answer
    x = 275,469.35

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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.