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Finding the Fourth Proportional to 573,638.68, 791,788.25 and 382,651.61

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Solution

The fourth proportional to 573,638.68, 791,788.25 and 382,651.61 is: 528,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,638.68 : 791,788.25 = 382,651.61 : x
  2. Step 2: Convert to fraction form
    573,638.68/791,788.25 = 382,651.61/x
  3. Step 3: Cross multiply
    573,638.68x = 791,788.25 × 382,651.61
  4. Step 4: Simplify right side
    573,638.68x = 302,979,048,641.58
  5. Step 5: Solve for x
    x = 302,979,048,641.58/573,638.68
  6. Step 6: Final answer
    x = 528,170.54

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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.