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Finding the Fourth Proportional to 460,036.80, 689,644.80 and 179,488.80

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Solution

The fourth proportional to 460,036.80, 689,644.80 and 179,488.80 is: 269,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,036.80 : 689,644.80 = 179,488.80 : x
  2. Step 2: Convert to fraction form
    460,036.80/689,644.80 = 179,488.80/x
  3. Step 3: Cross multiply
    460,036.80x = 689,644.80 × 179,488.80
  4. Step 4: Simplify right side
    460,036.80x = 123,783,517,578.24
  5. Step 5: Solve for x
    x = 123,783,517,578.24/460,036.80
  6. Step 6: Final answer
    x = 269,073.08

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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.