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Finding the Fourth Proportional to 353,019.57, 487,170.24 and 191,874.99

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Solution

The fourth proportional to 353,019.57, 487,170.24 and 191,874.99 is: 264,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,019.57 : 487,170.24 = 191,874.99 : x
  2. Step 2: Convert to fraction form
    353,019.57/487,170.24 = 191,874.99/x
  3. Step 3: Cross multiply
    353,019.57x = 487,170.24 × 191,874.99
  4. Step 4: Simplify right side
    353,019.57x = 93,475,784,928.30
  5. Step 5: Solve for x
    x = 93,475,784,928.30/353,019.57
  6. Step 6: Final answer
    x = 264,789.24

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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.