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Finding the Fourth Proportional to 262,409.80, 393,614.70 and 181,928.20

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Solution

The fourth proportional to 262,409.80, 393,614.70 and 181,928.20 is: 272,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,409.80 : 393,614.70 = 181,928.20 : x
  2. Step 2: Convert to fraction form
    262,409.80/393,614.70 = 181,928.20/x
  3. Step 3: Cross multiply
    262,409.80x = 393,614.70 × 181,928.20
  4. Step 4: Simplify right side
    262,409.80x = 71,609,613,864.54
  5. Step 5: Solve for x
    x = 71,609,613,864.54/262,409.80
  6. Step 6: Final answer
    x = 272,892.30

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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.