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Finding the Fourth Proportional to 1,025.88, 1,415.73 and 560.13

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Solution

The fourth proportional to 1,025.88, 1,415.73 and 560.13 is: 772.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.88 : 1,415.73 = 560.13 : x
  2. Step 2: Convert to fraction form
    1,025.88/1,415.73 = 560.13/x
  3. Step 3: Cross multiply
    1,025.88x = 1,415.73 × 560.13
  4. Step 4: Simplify right side
    1,025.88x = 792,992.84
  5. Step 5: Solve for x
    x = 792,992.84/1,025.88
  6. Step 6: Final answer
    x = 772.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.