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Finding the Fourth Proportional to 1,561.93, 2,342.90 and 587.77

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Solution

The fourth proportional to 1,561.93, 2,342.90 and 587.77 is: 881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.93 : 2,342.90 = 587.77 : x
  2. Step 2: Convert to fraction form
    1,561.93/2,342.90 = 587.77/x
  3. Step 3: Cross multiply
    1,561.93x = 2,342.90 × 587.77
  4. Step 4: Simplify right side
    1,561.93x = 1,377,086.33
  5. Step 5: Solve for x
    x = 1,377,086.33/1,561.93
  6. Step 6: Final answer
    x = 881.66

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