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Finding the Fourth Proportional to 491,016.90, 736,525.35 and 254,432.10

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Solution

The fourth proportional to 491,016.90, 736,525.35 and 254,432.10 is: 381,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,016.90 : 736,525.35 = 254,432.10 : x
  2. Step 2: Convert to fraction form
    491,016.90/736,525.35 = 254,432.10/x
  3. Step 3: Cross multiply
    491,016.90x = 736,525.35 × 254,432.10
  4. Step 4: Simplify right side
    491,016.90x = 187,395,691,503.74
  5. Step 5: Solve for x
    x = 187,395,691,503.74/491,016.90
  6. Step 6: Final answer
    x = 381,648.15

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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.