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Finding the Fourth Proportional to 443,480.23, 612,002.49 and 239,531.05

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Solution

The fourth proportional to 443,480.23, 612,002.49 and 239,531.05 is: 330,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,480.23 : 612,002.49 = 239,531.05 : x
  2. Step 2: Convert to fraction form
    443,480.23/612,002.49 = 239,531.05/x
  3. Step 3: Cross multiply
    443,480.23x = 612,002.49 × 239,531.05
  4. Step 4: Simplify right side
    443,480.23x = 146,593,599,032.31
  5. Step 5: Solve for x
    x = 146,593,599,032.31/443,480.23
  6. Step 6: Final answer
    x = 330,552.73

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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.