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Finding the Fourth Proportional to 450,956.87, 622,320.34 and 247,020.49

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Solution

The fourth proportional to 450,956.87, 622,320.34 and 247,020.49 is: 340,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,956.87 : 622,320.34 = 247,020.49 : x
  2. Step 2: Convert to fraction form
    450,956.87/622,320.34 = 247,020.49/x
  3. Step 3: Cross multiply
    450,956.87x = 622,320.34 × 247,020.49
  4. Step 4: Simplify right side
    450,956.87x = 153,725,873,141.47
  5. Step 5: Solve for x
    x = 153,725,873,141.47/450,956.87
  6. Step 6: Final answer
    x = 340,888.20

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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.