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Finding the Fourth Proportional to 1,011.52, 1,516.32 and 463.38

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Solution

The fourth proportional to 1,011.52, 1,516.32 and 463.38 is: 694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.52 : 1,516.32 = 463.38 : x
  2. Step 2: Convert to fraction form
    1,011.52/1,516.32 = 463.38/x
  3. Step 3: Cross multiply
    1,011.52x = 1,516.32 × 463.38
  4. Step 4: Simplify right side
    1,011.52x = 702,632.36
  5. Step 5: Solve for x
    x = 702,632.36/1,011.52
  6. Step 6: Final answer
    x = 694.63

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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.