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Finding the Fourth Proportional to 709,596.36, 979,243.92 and 454,947.54

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Solution

The fourth proportional to 709,596.36, 979,243.92 and 454,947.54 is: 627,828.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,596.36 : 979,243.92 = 454,947.54 : x
  2. Step 2: Convert to fraction form
    709,596.36/979,243.92 = 454,947.54/x
  3. Step 3: Cross multiply
    709,596.36x = 979,243.92 × 454,947.54
  4. Step 4: Simplify right side
    709,596.36x = 445,504,612,463.96
  5. Step 5: Solve for x
    x = 445,504,612,463.96/709,596.36
  6. Step 6: Final answer
    x = 627,828.21

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1.5x scale

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.