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Finding the Fourth Proportional to 273,398.60, 409,176.30 and 251,280.20

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Solution

The fourth proportional to 273,398.60, 409,176.30 and 251,280.20 is: 376,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,398.60 : 409,176.30 = 251,280.20 : x
  2. Step 2: Convert to fraction form
    273,398.60/409,176.30 = 251,280.20/x
  3. Step 3: Cross multiply
    273,398.60x = 409,176.30 × 251,280.20
  4. Step 4: Simplify right side
    273,398.60x = 102,817,902,499.26
  5. Step 5: Solve for x
    x = 102,817,902,499.26/273,398.60
  6. Step 6: Final answer
    x = 376,073.26

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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.