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Finding the Fourth Proportional to 937.51, 1,293.58 and 564.36

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Solution

The fourth proportional to 937.51, 1,293.58 and 564.36 is: 778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.51 : 1,293.58 = 564.36 : x
  2. Step 2: Convert to fraction form
    937.51/1,293.58 = 564.36/x
  3. Step 3: Cross multiply
    937.51x = 1,293.58 × 564.36
  4. Step 4: Simplify right side
    937.51x = 730,043.40
  5. Step 5: Solve for x
    x = 730,043.40/937.51
  6. Step 6: Final answer
    x = 778.71

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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.