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Finding the Fourth Proportional to 874,449, 1,207,264.50 and 573,167.88

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Solution

The fourth proportional to 874,449, 1,207,264.50 and 573,167.88 is: 791,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,449 : 1,207,264.50 = 573,167.88 : x
  2. Step 2: Convert to fraction form
    874,449/1,207,264.50 = 573,167.88/x
  3. Step 3: Cross multiply
    874,449x = 1,207,264.50 × 573,167.88
  4. Step 4: Simplify right side
    874,449x = 691,965,234,064.26
  5. Step 5: Solve for x
    x = 691,965,234,064.26/874,449
  6. Step 6: Final answer
    x = 791,315.71

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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.