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Finding the Fourth Proportional to 276,412.60, 414,618.90 and 187,839.10

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Solution

The fourth proportional to 276,412.60, 414,618.90 and 187,839.10 is: 281,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,412.60 : 414,618.90 = 187,839.10 : x
  2. Step 2: Convert to fraction form
    276,412.60/414,618.90 = 187,839.10/x
  3. Step 3: Cross multiply
    276,412.60x = 414,618.90 × 187,839.10
  4. Step 4: Simplify right side
    276,412.60x = 77,881,641,018.99
  5. Step 5: Solve for x
    x = 77,881,641,018.99/276,412.60
  6. Step 6: Final answer
    x = 281,758.65

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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.