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Finding the Fourth Proportional to 1,456.38, 2,009.73 and 793.19

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Solution

The fourth proportional to 1,456.38, 2,009.73 and 793.19 is: 1,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.38 : 2,009.73 = 793.19 : x
  2. Step 2: Convert to fraction form
    1,456.38/2,009.73 = 793.19/x
  3. Step 3: Cross multiply
    1,456.38x = 2,009.73 × 793.19
  4. Step 4: Simplify right side
    1,456.38x = 1,594,097.74
  5. Step 5: Solve for x
    x = 1,594,097.74/1,456.38
  6. Step 6: Final answer
    x = 1,094.56

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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.