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Finding the Fourth Proportional to 382,292.67, 573,080.89 and 129,396.20

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Solution

The fourth proportional to 382,292.67, 573,080.89 and 129,396.20 is: 193,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,292.67 : 573,080.89 = 129,396.20 : x
  2. Step 2: Convert to fraction form
    382,292.67/573,080.89 = 129,396.20/x
  3. Step 3: Cross multiply
    382,292.67x = 573,080.89 × 129,396.20
  4. Step 4: Simplify right side
    382,292.67x = 74,154,486,269.72
  5. Step 5: Solve for x
    x = 74,154,486,269.72/382,292.67
  6. Step 6: Final answer
    x = 193,973.08

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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.