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Finding the Fourth Proportional to 834,752.05, 1,251,713.44 and 266,059.15

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Solution

The fourth proportional to 834,752.05, 1,251,713.44 and 266,059.15 is: 398,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,752.05 : 1,251,713.44 = 266,059.15 : x
  2. Step 2: Convert to fraction form
    834,752.05/1,251,713.44 = 266,059.15/x
  3. Step 3: Cross multiply
    834,752.05x = 1,251,713.44 × 266,059.15
  4. Step 4: Simplify right side
    834,752.05x = 333,029,813,889.98
  5. Step 5: Solve for x
    x = 333,029,813,889.98/834,752.05
  6. Step 6: Final answer
    x = 398,956.57

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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.