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Finding the Fourth Proportional to 704,871.10, 972,718.84 and 382,578.38

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Solution

The fourth proportional to 704,871.10, 972,718.84 and 382,578.38 is: 527,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,871.10 : 972,718.84 = 382,578.38 : x
  2. Step 2: Convert to fraction form
    704,871.10/972,718.84 = 382,578.38/x
  3. Step 3: Cross multiply
    704,871.10x = 972,718.84 × 382,578.38
  4. Step 4: Simplify right side
    704,871.10x = 372,141,198,002.68
  5. Step 5: Solve for x
    x = 372,141,198,002.68/704,871.10
  6. Step 6: Final answer
    x = 527,956.39

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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.