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Finding the Fourth Proportional to 795.67, 1,098.40 and 530.55

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Solution

The fourth proportional to 795.67, 1,098.40 and 530.55 is: 732.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.67 : 1,098.40 = 530.55 : x
  2. Step 2: Convert to fraction form
    795.67/1,098.40 = 530.55/x
  3. Step 3: Cross multiply
    795.67x = 1,098.40 × 530.55
  4. Step 4: Simplify right side
    795.67x = 582,753.80
  5. Step 5: Solve for x
    x = 582,753.80/795.67
  6. Step 6: Final answer
    x = 732.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.