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Finding the Fourth Proportional to 443,867.64, 612,540.12 and 239,918.14

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Solution

The fourth proportional to 443,867.64, 612,540.12 and 239,918.14 is: 331,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,867.64 : 612,540.12 = 239,918.14 : x
  2. Step 2: Convert to fraction form
    443,867.64/612,540.12 = 239,918.14/x
  3. Step 3: Cross multiply
    443,867.64x = 612,540.12 × 239,918.14
  4. Step 4: Simplify right side
    443,867.64x = 146,959,486,265.78
  5. Step 5: Solve for x
    x = 146,959,486,265.78/443,867.64
  6. Step 6: Final answer
    x = 331,088.53

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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.