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Finding the Fourth Proportional to 382,008.60, 573,012.90 and 132,690.60

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Solution

The fourth proportional to 382,008.60, 573,012.90 and 132,690.60 is: 199,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,008.60 : 573,012.90 = 132,690.60 : x
  2. Step 2: Convert to fraction form
    382,008.60/573,012.90 = 132,690.60/x
  3. Step 3: Cross multiply
    382,008.60x = 573,012.90 × 132,690.60
  4. Step 4: Simplify right side
    382,008.60x = 76,033,425,508.74
  5. Step 5: Solve for x
    x = 76,033,425,508.74/382,008.60
  6. Step 6: Final answer
    x = 199,035.90

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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.