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Finding the Fourth Proportional to 1,224.11, 1,835.93 and 1,019.99

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Solution

The fourth proportional to 1,224.11, 1,835.93 and 1,019.99 is: 1,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.11 : 1,835.93 = 1,019.99 : x
  2. Step 2: Convert to fraction form
    1,224.11/1,835.93 = 1,019.99/x
  3. Step 3: Cross multiply
    1,224.11x = 1,835.93 × 1,019.99
  4. Step 4: Simplify right side
    1,224.11x = 1,872,637.38
  5. Step 5: Solve for x
    x = 1,872,637.38/1,224.11
  6. Step 6: Final answer
    x = 1,529.79

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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.