Home / 411,829.40-618,143.57-198,747.27

Finding the Fourth Proportional to 411,829.40, 618,143.57 and 198,747.27

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Solution

The fourth proportional to 411,829.40, 618,143.57 and 198,747.27 is: 298,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,829.40 : 618,143.57 = 198,747.27 : x
  2. Step 2: Convert to fraction form
    411,829.40/618,143.57 = 198,747.27/x
  3. Step 3: Cross multiply
    411,829.40x = 618,143.57 × 198,747.27
  4. Step 4: Simplify right side
    411,829.40x = 122,854,346,011.82
  5. Step 5: Solve for x
    x = 122,854,346,011.82/411,829.40
  6. Step 6: Final answer
    x = 298,313.69

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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.