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Finding the Fourth Proportional to 2,988.79, 4,484.42 and 1,601.77

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Solution

The fourth proportional to 2,988.79, 4,484.42 and 1,601.77 is: 2,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.79 : 4,484.42 = 1,601.77 : x
  2. Step 2: Convert to fraction form
    2,988.79/4,484.42 = 1,601.77/x
  3. Step 3: Cross multiply
    2,988.79x = 4,484.42 × 1,601.77
  4. Step 4: Simplify right side
    2,988.79x = 7,182,991.01
  5. Step 5: Solve for x
    x = 7,182,991.01/2,988.79
  6. Step 6: Final answer
    x = 2,403.31

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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.