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Finding the Fourth Proportional to 950,772.80, 1,311,853.60 and 542,744.64

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Solution

The fourth proportional to 950,772.80, 1,311,853.60 and 542,744.64 is: 748,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,772.80 : 1,311,853.60 = 542,744.64 : x
  2. Step 2: Convert to fraction form
    950,772.80/1,311,853.60 = 542,744.64/x
  3. Step 3: Cross multiply
    950,772.80x = 1,311,853.60 × 542,744.64
  4. Step 4: Simplify right side
    950,772.80x = 712,001,509,864.70
  5. Step 5: Solve for x
    x = 712,001,509,864.70/950,772.80
  6. Step 6: Final answer
    x = 748,866.09

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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.