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Finding the Fourth Proportional to 484,515.78, 726,618.66 and 160,243.65

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Solution

The fourth proportional to 484,515.78, 726,618.66 and 160,243.65 is: 240,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,515.78 : 726,618.66 = 160,243.65 : x
  2. Step 2: Convert to fraction form
    484,515.78/726,618.66 = 160,243.65/x
  3. Step 3: Cross multiply
    484,515.78x = 726,618.66 × 160,243.65
  4. Step 4: Simplify right side
    484,515.78x = 116,436,026,236.51
  5. Step 5: Solve for x
    x = 116,436,026,236.51/484,515.78
  6. Step 6: Final answer
    x = 240,314.21

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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.