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Finding the Fourth Proportional to 354,714.28, 489,503.46 and 193,566.04

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Solution

The fourth proportional to 354,714.28, 489,503.46 and 193,566.04 is: 267,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,714.28 : 489,503.46 = 193,566.04 : x
  2. Step 2: Convert to fraction form
    354,714.28/489,503.46 = 193,566.04/x
  3. Step 3: Cross multiply
    354,714.28x = 489,503.46 × 193,566.04
  4. Step 4: Simplify right side
    354,714.28x = 94,751,246,318.50
  5. Step 5: Solve for x
    x = 94,751,246,318.50/354,714.28
  6. Step 6: Final answer
    x = 267,119.91

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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.