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Finding the Fourth Proportional to 973.37, 1,344.14 and 709.33

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Solution

The fourth proportional to 973.37, 1,344.14 and 709.33 is: 979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.37 : 1,344.14 = 709.33 : x
  2. Step 2: Convert to fraction form
    973.37/1,344.14 = 709.33/x
  3. Step 3: Cross multiply
    973.37x = 1,344.14 × 709.33
  4. Step 4: Simplify right side
    973.37x = 953,435.28
  5. Step 5: Solve for x
    x = 953,435.28/973.37
  6. Step 6: Final answer
    x = 979.52

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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.