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Finding the Fourth Proportional to 260,908.02, 391,347.04 and 154,964.92

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Solution

The fourth proportional to 260,908.02, 391,347.04 and 154,964.92 is: 232,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,908.02 : 391,347.04 = 154,964.92 : x
  2. Step 2: Convert to fraction form
    260,908.02/391,347.04 = 154,964.92/x
  3. Step 3: Cross multiply
    260,908.02x = 391,347.04 × 154,964.92
  4. Step 4: Simplify right side
    260,908.02x = 60,645,061,380.06
  5. Step 5: Solve for x
    x = 60,645,061,380.06/260,908.02
  6. Step 6: Final answer
    x = 232,438.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.