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Finding the Fourth Proportional to 326,766.30, 490,149.45 and 116,411.10

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Solution

The fourth proportional to 326,766.30, 490,149.45 and 116,411.10 is: 174,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,766.30 : 490,149.45 = 116,411.10 : x
  2. Step 2: Convert to fraction form
    326,766.30/490,149.45 = 116,411.10/x
  3. Step 3: Cross multiply
    326,766.30x = 490,149.45 × 116,411.10
  4. Step 4: Simplify right side
    326,766.30x = 57,058,836,638.90
  5. Step 5: Solve for x
    x = 57,058,836,638.90/326,766.30
  6. Step 6: Final answer
    x = 174,616.65

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Similar ratio
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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.