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Finding the Fourth Proportional to 2,798.76, 4,198.56 and 924.06

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Solution

The fourth proportional to 2,798.76, 4,198.56 and 924.06 is: 1,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.76 : 4,198.56 = 924.06 : x
  2. Step 2: Convert to fraction form
    2,798.76/4,198.56 = 924.06/x
  3. Step 3: Cross multiply
    2,798.76x = 4,198.56 × 924.06
  4. Step 4: Simplify right side
    2,798.76x = 3,879,721.35
  5. Step 5: Solve for x
    x = 3,879,721.35/2,798.76
  6. Step 6: Final answer
    x = 1,386.23

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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.