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Finding the Fourth Proportional to 443,534.67, 612,078.10 and 239,585.60

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Solution

The fourth proportional to 443,534.67, 612,078.10 and 239,585.60 is: 330,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,534.67 : 612,078.10 = 239,585.60 : x
  2. Step 2: Convert to fraction form
    443,534.67/612,078.10 = 239,585.60/x
  3. Step 3: Cross multiply
    443,534.67x = 612,078.10 × 239,585.60
  4. Step 4: Simplify right side
    443,534.67x = 146,645,099,766.59
  5. Step 5: Solve for x
    x = 146,645,099,766.59/443,534.67
  6. Step 6: Final answer
    x = 330,628.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.