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Finding the Fourth Proportional to 418,224.42, 626,984.01 and 181,388.79

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Solution

The fourth proportional to 418,224.42, 626,984.01 and 181,388.79 is: 271,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,224.42 : 626,984.01 = 181,388.79 : x
  2. Step 2: Convert to fraction form
    418,224.42/626,984.01 = 181,388.79/x
  3. Step 3: Cross multiply
    418,224.42x = 626,984.01 × 181,388.79
  4. Step 4: Simplify right side
    418,224.42x = 113,727,870,923.25
  5. Step 5: Solve for x
    x = 113,727,870,923.25/418,224.42
  6. Step 6: Final answer
    x = 271,930.25

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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.