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Finding the Fourth Proportional to 267,483.96, 400,781.25 and 188,431.20

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Solution

The fourth proportional to 267,483.96, 400,781.25 and 188,431.20 is: 282,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,483.96 : 400,781.25 = 188,431.20 : x
  2. Step 2: Convert to fraction form
    267,483.96/400,781.25 = 188,431.20/x
  3. Step 3: Cross multiply
    267,483.96x = 400,781.25 × 188,431.20
  4. Step 4: Simplify right side
    267,483.96x = 75,519,691,875
  5. Step 5: Solve for x
    x = 75,519,691,875/267,483.96
  6. Step 6: Final answer
    x = 282,333.53

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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.