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Finding the Fourth Proportional to 295,693.20, 443,539.80 and 137,937.60

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Solution

The fourth proportional to 295,693.20, 443,539.80 and 137,937.60 is: 206,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,693.20 : 443,539.80 = 137,937.60 : x
  2. Step 2: Convert to fraction form
    295,693.20/443,539.80 = 137,937.60/x
  3. Step 3: Cross multiply
    295,693.20x = 443,539.80 × 137,937.60
  4. Step 4: Simplify right side
    295,693.20x = 61,180,815,516.48
  5. Step 5: Solve for x
    x = 61,180,815,516.48/295,693.20
  6. Step 6: Final answer
    x = 206,906.40

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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.