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Finding the Fourth Proportional to 1,330.52, 1,995.91 and 464.63

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Solution

The fourth proportional to 1,330.52, 1,995.91 and 464.63 is: 696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.52 : 1,995.91 = 464.63 : x
  2. Step 2: Convert to fraction form
    1,330.52/1,995.91 = 464.63/x
  3. Step 3: Cross multiply
    1,330.52x = 1,995.91 × 464.63
  4. Step 4: Simplify right side
    1,330.52x = 927,348.52
  5. Step 5: Solve for x
    x = 927,348.52/1,330.52
  6. Step 6: Final answer
    x = 696.98

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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.