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Finding the Fourth Proportional to 480,808.44, 721,260.72 and 165,223.80

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Solution

The fourth proportional to 480,808.44, 721,260.72 and 165,223.80 is: 247,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,808.44 : 721,260.72 = 165,223.80 : x
  2. Step 2: Convert to fraction form
    480,808.44/721,260.72 = 165,223.80/x
  3. Step 3: Cross multiply
    480,808.44x = 721,260.72 × 165,223.80
  4. Step 4: Simplify right side
    480,808.44x = 119,169,436,949.14
  5. Step 5: Solve for x
    x = 119,169,436,949.14/480,808.44
  6. Step 6: Final answer
    x = 247,852.22

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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.