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Finding the Fourth Proportional to 273,215.70, 409,823.55 and 173,816.55

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Solution

The fourth proportional to 273,215.70, 409,823.55 and 173,816.55 is: 260,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,215.70 : 409,823.55 = 173,816.55 : x
  2. Step 2: Convert to fraction form
    273,215.70/409,823.55 = 173,816.55/x
  3. Step 3: Cross multiply
    273,215.70x = 409,823.55 × 173,816.55
  4. Step 4: Simplify right side
    273,215.70x = 71,234,115,569.75
  5. Step 5: Solve for x
    x = 71,234,115,569.75/273,215.70
  6. Step 6: Final answer
    x = 260,724.83

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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.