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Finding the Fourth Proportional to 308,561.97, 425,644.18 and 179,485.91

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Solution

The fourth proportional to 308,561.97, 425,644.18 and 179,485.91 is: 247,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,561.97 : 425,644.18 = 179,485.91 : x
  2. Step 2: Convert to fraction form
    308,561.97/425,644.18 = 179,485.91/x
  3. Step 3: Cross multiply
    308,561.97x = 425,644.18 × 179,485.91
  4. Step 4: Simplify right side
    308,561.97x = 76,397,132,983.50
  5. Step 5: Solve for x
    x = 76,397,132,983.50/308,561.97
  6. Step 6: Final answer
    x = 247,590.89

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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.