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Finding the Fourth Proportional to 1,198.96, 1,798.08 and 468.16

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Solution

The fourth proportional to 1,198.96, 1,798.08 and 468.16 is: 702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.96 : 1,798.08 = 468.16 : x
  2. Step 2: Convert to fraction form
    1,198.96/1,798.08 = 468.16/x
  3. Step 3: Cross multiply
    1,198.96x = 1,798.08 × 468.16
  4. Step 4: Simplify right side
    1,198.96x = 841,789.13
  5. Step 5: Solve for x
    x = 841,789.13/1,198.96
  6. Step 6: Final answer
    x = 702.10

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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.