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Finding the Fourth Proportional to 714,963.70, 986,793.11 and 424,736.48

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Solution

The fourth proportional to 714,963.70, 986,793.11 and 424,736.48 is: 586,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,963.70 : 986,793.11 = 424,736.48 : x
  2. Step 2: Convert to fraction form
    714,963.70/986,793.11 = 424,736.48/x
  3. Step 3: Cross multiply
    714,963.70x = 986,793.11 × 424,736.48
  4. Step 4: Simplify right side
    714,963.70x = 419,127,032,029.65
  5. Step 5: Solve for x
    x = 419,127,032,029.65/714,963.70
  6. Step 6: Final answer
    x = 586,221.42

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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.