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Finding the Fourth Proportional to 470,659.82, 649,510.62 and 255,799.88

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Solution

The fourth proportional to 470,659.82, 649,510.62 and 255,799.88 is: 353,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,659.82 : 649,510.62 = 255,799.88 : x
  2. Step 2: Convert to fraction form
    470,659.82/649,510.62 = 255,799.88/x
  3. Step 3: Cross multiply
    470,659.82x = 649,510.62 × 255,799.88
  4. Step 4: Simplify right side
    470,659.82x = 166,144,738,654.73
  5. Step 5: Solve for x
    x = 166,144,738,654.73/470,659.82
  6. Step 6: Final answer
    x = 353,003.87

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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.