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Finding the Fourth Proportional to 633,546.52, 873,962.94 and 391,751.80

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Solution

The fourth proportional to 633,546.52, 873,962.94 and 391,751.80 is: 540,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,546.52 : 873,962.94 = 391,751.80 : x
  2. Step 2: Convert to fraction form
    633,546.52/873,962.94 = 391,751.80/x
  3. Step 3: Cross multiply
    633,546.52x = 873,962.94 × 391,751.80
  4. Step 4: Simplify right side
    633,546.52x = 342,376,554,878.29
  5. Step 5: Solve for x
    x = 342,376,554,878.29/633,546.52
  6. Step 6: Final answer
    x = 540,412.65

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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.