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Finding the Fourth Proportional to 1,353.04, 1,867.38 and 793.69

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Solution

The fourth proportional to 1,353.04, 1,867.38 and 793.69 is: 1,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.04 : 1,867.38 = 793.69 : x
  2. Step 2: Convert to fraction form
    1,353.04/1,867.38 = 793.69/x
  3. Step 3: Cross multiply
    1,353.04x = 1,867.38 × 793.69
  4. Step 4: Simplify right side
    1,353.04x = 1,482,116.16
  5. Step 5: Solve for x
    x = 1,482,116.16/1,353.04
  6. Step 6: Final answer
    x = 1,095.40

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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.