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Finding the Fourth Proportional to 353,999.76, 488,517.12 and 192,854.76

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Solution

The fourth proportional to 353,999.76, 488,517.12 and 192,854.76 is: 266,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,999.76 : 488,517.12 = 192,854.76 : x
  2. Step 2: Convert to fraction form
    353,999.76/488,517.12 = 192,854.76/x
  3. Step 3: Cross multiply
    353,999.76x = 488,517.12 × 192,854.76
  4. Step 4: Simplify right side
    353,999.76x = 94,212,851,933.49
  5. Step 5: Solve for x
    x = 94,212,851,933.49/353,999.76
  6. Step 6: Final answer
    x = 266,138.18

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1.5x scale

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.