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Finding the Fourth Proportional to 1,065.44, 1,470.27 and 593.32

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Solution

The fourth proportional to 1,065.44, 1,470.27 and 593.32 is: 818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.44 : 1,470.27 = 593.32 : x
  2. Step 2: Convert to fraction form
    1,065.44/1,470.27 = 593.32/x
  3. Step 3: Cross multiply
    1,065.44x = 1,470.27 × 593.32
  4. Step 4: Simplify right side
    1,065.44x = 872,340.60
  5. Step 5: Solve for x
    x = 872,340.60/1,065.44
  6. Step 6: Final answer
    x = 818.76

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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.