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Finding the Fourth Proportional to 1,164.96, 1,747.62 and 424.65

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Solution

The fourth proportional to 1,164.96, 1,747.62 and 424.65 is: 637.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.96 : 1,747.62 = 424.65 : x
  2. Step 2: Convert to fraction form
    1,164.96/1,747.62 = 424.65/x
  3. Step 3: Cross multiply
    1,164.96x = 1,747.62 × 424.65
  4. Step 4: Simplify right side
    1,164.96x = 742,126.83
  5. Step 5: Solve for x
    x = 742,126.83/1,164.96
  6. Step 6: Final answer
    x = 637.04

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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.