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Finding the Fourth Proportional to 819,568.62, 1,131,718.48 and 514,170

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Solution

The fourth proportional to 819,568.62, 1,131,718.48 and 514,170 is: 710,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,568.62 : 1,131,718.48 = 514,170 : x
  2. Step 2: Convert to fraction form
    819,568.62/1,131,718.48 = 514,170/x
  3. Step 3: Cross multiply
    819,568.62x = 1,131,718.48 × 514,170
  4. Step 4: Simplify right side
    819,568.62x = 581,895,689,576.18
  5. Step 5: Solve for x
    x = 581,895,689,576.18/819,568.62
  6. Step 6: Final answer
    x = 710,002.40

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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.