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Finding the Fourth Proportional to 2,440, 3,660 and 616

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Solution

The fourth proportional to 2,440, 3,660 and 616 is: 924

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440 : 3,660 = 616 : x
  2. Step 2: Convert to fraction form
    2,440/3,660 = 616/x
  3. Step 3: Cross multiply
    2,440x = 3,660 × 616
  4. Step 4: Simplify right side
    2,440x = 2,254,560
  5. Step 5: Solve for x
    x = 2,254,560/2,440
  6. Step 6: Final answer
    x = 924

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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.