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Finding the Fourth Proportional to 1,165.55, 1,608.32 and 793.00

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Solution

The fourth proportional to 1,165.55, 1,608.32 and 793.00 is: 1,094.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.55 : 1,608.32 = 793.00 : x
  2. Step 2: Convert to fraction form
    1,165.55/1,608.32 = 793.00/x
  3. Step 3: Cross multiply
    1,165.55x = 1,608.32 × 793.00
  4. Step 4: Simplify right side
    1,165.55x = 1,275,392.71
  5. Step 5: Solve for x
    x = 1,275,392.71/1,165.55
  6. Step 6: Final answer
    x = 1,094.25

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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.