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Finding the Fourth Proportional to 278,304.01, 384,060.24 and 150,979.58

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Solution

The fourth proportional to 278,304.01, 384,060.24 and 150,979.58 is: 208,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,304.01 : 384,060.24 = 150,979.58 : x
  2. Step 2: Convert to fraction form
    278,304.01/384,060.24 = 150,979.58/x
  3. Step 3: Cross multiply
    278,304.01x = 384,060.24 × 150,979.58
  4. Step 4: Simplify right side
    278,304.01x = 57,985,253,729.90
  5. Step 5: Solve for x
    x = 57,985,253,729.90/278,304.01
  6. Step 6: Final answer
    x = 208,352.20

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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.