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Finding the Fourth Proportional to 969,969.40, 1,454,954.10 and 338,801.20

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Solution

The fourth proportional to 969,969.40, 1,454,954.10 and 338,801.20 is: 508,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,969.40 : 1,454,954.10 = 338,801.20 : x
  2. Step 2: Convert to fraction form
    969,969.40/1,454,954.10 = 338,801.20/x
  3. Step 3: Cross multiply
    969,969.40x = 1,454,954.10 × 338,801.20
  4. Step 4: Simplify right side
    969,969.40x = 492,940,195,024.92
  5. Step 5: Solve for x
    x = 492,940,195,024.92/969,969.40
  6. Step 6: Final answer
    x = 508,201.80

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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.