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Finding the Fourth Proportional to 2,340.54, 3,510.18 and 696.66

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Solution

The fourth proportional to 2,340.54, 3,510.18 and 696.66 is: 1,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.54 : 3,510.18 = 696.66 : x
  2. Step 2: Convert to fraction form
    2,340.54/3,510.18 = 696.66/x
  3. Step 3: Cross multiply
    2,340.54x = 3,510.18 × 696.66
  4. Step 4: Simplify right side
    2,340.54x = 2,445,402.00
  5. Step 5: Solve for x
    x = 2,445,402.00/2,340.54
  6. Step 6: Final answer
    x = 1,044.80

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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.