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Finding the Fourth Proportional to 282,449.53, 389,799.44 and 155,126.44

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Solution

The fourth proportional to 282,449.53, 389,799.44 and 155,126.44 is: 214,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,449.53 : 389,799.44 = 155,126.44 : x
  2. Step 2: Convert to fraction form
    282,449.53/389,799.44 = 155,126.44/x
  3. Step 3: Cross multiply
    282,449.53x = 389,799.44 × 155,126.44
  4. Step 4: Simplify right side
    282,449.53x = 60,468,199,441.19
  5. Step 5: Solve for x
    x = 60,468,199,441.19/282,449.53
  6. Step 6: Final answer
    x = 214,084.97

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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.