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Finding the Fourth Proportional to 1,593.95, 2,388.69 and 772.00

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Solution

The fourth proportional to 1,593.95, 2,388.69 and 772.00 is: 1,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.95 : 2,388.69 = 772.00 : x
  2. Step 2: Convert to fraction form
    1,593.95/2,388.69 = 772.00/x
  3. Step 3: Cross multiply
    1,593.95x = 2,388.69 × 772.00
  4. Step 4: Simplify right side
    1,593.95x = 1,844,062.71
  5. Step 5: Solve for x
    x = 1,844,062.71/1,593.95
  6. Step 6: Final answer
    x = 1,156.92

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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.