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Finding the Fourth Proportional to 243,790.60, 365,685.90 and 204,424.60

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Solution

The fourth proportional to 243,790.60, 365,685.90 and 204,424.60 is: 306,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,790.60 : 365,685.90 = 204,424.60 : x
  2. Step 2: Convert to fraction form
    243,790.60/365,685.90 = 204,424.60/x
  3. Step 3: Cross multiply
    243,790.60x = 365,685.90 × 204,424.60
  4. Step 4: Simplify right side
    243,790.60x = 74,755,193,833.14
  5. Step 5: Solve for x
    x = 74,755,193,833.14/243,790.60
  6. Step 6: Final answer
    x = 306,636.90

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1.5x scale

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.