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Finding the Fourth Proportional to 354,997.98, 489,901.23 and 193,854.96

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Solution

The fourth proportional to 354,997.98, 489,901.23 and 193,854.96 is: 267,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,997.98 : 489,901.23 = 193,854.96 : x
  2. Step 2: Convert to fraction form
    354,997.98/489,901.23 = 193,854.96/x
  3. Step 3: Cross multiply
    354,997.98x = 489,901.23 × 193,854.96
  4. Step 4: Simplify right side
    354,997.98x = 94,969,783,345.60
  5. Step 5: Solve for x
    x = 94,969,783,345.60/354,997.98
  6. Step 6: Final answer
    x = 267,522.04

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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.