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Finding the Fourth Proportional to 1,690.32, 2,535.72 and 594.56

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Solution

The fourth proportional to 1,690.32, 2,535.72 and 594.56 is: 891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.32 : 2,535.72 = 594.56 : x
  2. Step 2: Convert to fraction form
    1,690.32/2,535.72 = 594.56/x
  3. Step 3: Cross multiply
    1,690.32x = 2,535.72 × 594.56
  4. Step 4: Simplify right side
    1,690.32x = 1,507,637.68
  5. Step 5: Solve for x
    x = 1,507,637.68/1,690.32
  6. Step 6: Final answer
    x = 891.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.