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Finding the Fourth Proportional to 795.40, 1,192.38 and 709

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Solution

The fourth proportional to 795.40, 1,192.38 and 709 is: 1,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.40 : 1,192.38 = 709 : x
  2. Step 2: Convert to fraction form
    795.40/1,192.38 = 709/x
  3. Step 3: Cross multiply
    795.40x = 1,192.38 × 709
  4. Step 4: Simplify right side
    795.40x = 845,397.42
  5. Step 5: Solve for x
    x = 845,397.42/795.40
  6. Step 6: Final answer
    x = 1,062.86

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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.