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Finding the Fourth Proportional to 519,806, 717,334.44 and 281,342

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Solution

The fourth proportional to 519,806, 717,334.44 and 281,342 is: 388,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,806 : 717,334.44 = 281,342 : x
  2. Step 2: Convert to fraction form
    519,806/717,334.44 = 281,342/x
  3. Step 3: Cross multiply
    519,806x = 717,334.44 × 281,342
  4. Step 4: Simplify right side
    519,806x = 201,816,306,018.48
  5. Step 5: Solve for x
    x = 201,816,306,018.48/519,806
  6. Step 6: Final answer
    x = 388,253.13

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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.