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Finding the Fourth Proportional to 1,329.54, 1,995.23 and 463.85

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Solution

The fourth proportional to 1,329.54, 1,995.23 and 463.85 is: 696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.54 : 1,995.23 = 463.85 : x
  2. Step 2: Convert to fraction form
    1,329.54/1,995.23 = 463.85/x
  3. Step 3: Cross multiply
    1,329.54x = 1,995.23 × 463.85
  4. Step 4: Simplify right side
    1,329.54x = 925,491.71
  5. Step 5: Solve for x
    x = 925,491.71/1,329.54
  6. Step 6: Final answer
    x = 696.10

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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.