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Finding the Fourth Proportional to 3,466.13, 5,198.81 and 869.06

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Solution

The fourth proportional to 3,466.13, 5,198.81 and 869.06 is: 1,303.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,466.13 : 5,198.81 = 869.06 : x
  2. Step 2: Convert to fraction form
    3,466.13/5,198.81 = 869.06/x
  3. Step 3: Cross multiply
    3,466.13x = 5,198.81 × 869.06
  4. Step 4: Simplify right side
    3,466.13x = 4,518,086.47
  5. Step 5: Solve for x
    x = 4,518,086.47/3,466.13
  6. Step 6: Final answer
    x = 1,303.50

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1.5x scale

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.