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Finding the Fourth Proportional to 528,452.90, 792,677.19 and 191,414.67

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Solution

The fourth proportional to 528,452.90, 792,677.19 and 191,414.67 is: 287,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,452.90 : 792,677.19 = 191,414.67 : x
  2. Step 2: Convert to fraction form
    528,452.90/792,677.19 = 191,414.67/x
  3. Step 3: Cross multiply
    528,452.90x = 792,677.19 × 191,414.67
  4. Step 4: Simplify right side
    528,452.90x = 151,730,042,740.38
  5. Step 5: Solve for x
    x = 151,730,042,740.38/528,452.90
  6. Step 6: Final answer
    x = 287,121.23

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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.