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Finding the Fourth Proportional to 322,346.25, 483,595.01 and 316,990.83

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Solution

The fourth proportional to 322,346.25, 483,595.01 and 316,990.83 is: 475,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,346.25 : 483,595.01 = 316,990.83 : x
  2. Step 2: Convert to fraction form
    322,346.25/483,595.01 = 316,990.83/x
  3. Step 3: Cross multiply
    322,346.25x = 483,595.01 × 316,990.83
  4. Step 4: Simplify right side
    322,346.25x = 153,295,182,018.80
  5. Step 5: Solve for x
    x = 153,295,182,018.80/322,346.25
  6. Step 6: Final answer
    x = 475,560.62

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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.