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Finding the Fourth Proportional to 321,886.92, 483,617.58 and 303,982.60

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Solution

The fourth proportional to 321,886.92, 483,617.58 and 303,982.60 is: 456,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,886.92 : 483,617.58 = 303,982.60 : x
  2. Step 2: Convert to fraction form
    321,886.92/483,617.58 = 303,982.60/x
  3. Step 3: Cross multiply
    321,886.92x = 483,617.58 × 303,982.60
  4. Step 4: Simplify right side
    321,886.92x = 147,011,329,374.11
  5. Step 5: Solve for x
    x = 147,011,329,374.11/321,886.92
  6. Step 6: Final answer
    x = 456,717.31

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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.