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Finding the Fourth Proportional to 2,400.61, 3,602.54 and 939.58

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Solution

The fourth proportional to 2,400.61, 3,602.54 and 939.58 is: 1,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.61 : 3,602.54 = 939.58 : x
  2. Step 2: Convert to fraction form
    2,400.61/3,602.54 = 939.58/x
  3. Step 3: Cross multiply
    2,400.61x = 3,602.54 × 939.58
  4. Step 4: Simplify right side
    2,400.61x = 3,384,874.53
  5. Step 5: Solve for x
    x = 3,384,874.53/2,400.61
  6. Step 6: Final answer
    x = 1,410.01

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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.