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Finding the Fourth Proportional to 528,034.97, 792,113.92 and 191,234.21

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Solution

The fourth proportional to 528,034.97, 792,113.92 and 191,234.21 is: 286,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,034.97 : 792,113.92 = 191,234.21 : x
  2. Step 2: Convert to fraction form
    528,034.97/792,113.92 = 191,234.21/x
  3. Step 3: Cross multiply
    528,034.97x = 792,113.92 × 191,234.21
  4. Step 4: Simplify right side
    528,034.97x = 151,479,275,282.55
  5. Step 5: Solve for x
    x = 151,479,275,282.55/528,034.97
  6. Step 6: Final answer
    x = 286,873.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.