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Finding the Fourth Proportional to 746.52, 1,030.70 and 697.26

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Solution

The fourth proportional to 746.52, 1,030.70 and 697.26 is: 962.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.52 : 1,030.70 = 697.26 : x
  2. Step 2: Convert to fraction form
    746.52/1,030.70 = 697.26/x
  3. Step 3: Cross multiply
    746.52x = 1,030.70 × 697.26
  4. Step 4: Simplify right side
    746.52x = 718,665.88
  5. Step 5: Solve for x
    x = 718,665.88/746.52
  6. Step 6: Final answer
    x = 962.69

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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.