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Finding the Fourth Proportional to 1,258,253.46, 1,736,614.94 and 741,976.06

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Solution

The fourth proportional to 1,258,253.46, 1,736,614.94 and 741,976.06 is: 1,024,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,253.46 : 1,736,614.94 = 741,976.06 : x
  2. Step 2: Convert to fraction form
    1,258,253.46/1,736,614.94 = 741,976.06/x
  3. Step 3: Cross multiply
    1,258,253.46x = 1,736,614.94 × 741,976.06
  4. Step 4: Simplify right side
    1,258,253.46x = 1,288,526,709,591.77
  5. Step 5: Solve for x
    x = 1,288,526,709,591.77/1,258,253.46
  6. Step 6: Final answer
    x = 1,024,059.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.