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Finding the Fourth Proportional to 278,296.92, 384,049.62 and 150,972.48

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Solution

The fourth proportional to 278,296.92, 384,049.62 and 150,972.48 is: 208,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,296.92 : 384,049.62 = 150,972.48 : x
  2. Step 2: Convert to fraction form
    278,296.92/384,049.62 = 150,972.48/x
  3. Step 3: Cross multiply
    278,296.92x = 384,049.62 × 150,972.48
  4. Step 4: Simplify right side
    278,296.92x = 57,980,923,574.46
  5. Step 5: Solve for x
    x = 57,980,923,574.46/278,296.92
  6. Step 6: Final answer
    x = 208,341.95

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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.