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Finding the Fourth Proportional to 324,657.56, 486,972.48 and 317,055.00

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Solution

The fourth proportional to 324,657.56, 486,972.48 and 317,055.00 is: 475,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,657.56 : 486,972.48 = 317,055.00 : x
  2. Step 2: Convert to fraction form
    324,657.56/486,972.48 = 317,055.00/x
  3. Step 3: Cross multiply
    324,657.56x = 486,972.48 × 317,055.00
  4. Step 4: Simplify right side
    324,657.56x = 154,397,060,889.76
  5. Step 5: Solve for x
    x = 154,397,060,889.76/324,657.56
  6. Step 6: Final answer
    x = 475,568.97

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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.