Home / 618,904.74-928,370.07-198,179.40

Finding the Fourth Proportional to 618,904.74, 928,370.07 and 198,179.40

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Solution

The fourth proportional to 618,904.74, 928,370.07 and 198,179.40 is: 297,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,904.74 : 928,370.07 = 198,179.40 : x
  2. Step 2: Convert to fraction form
    618,904.74/928,370.07 = 198,179.40/x
  3. Step 3: Cross multiply
    618,904.74x = 928,370.07 × 198,179.40
  4. Step 4: Simplify right side
    618,904.74x = 183,983,823,450.56
  5. Step 5: Solve for x
    x = 183,983,823,450.56/618,904.74
  6. Step 6: Final answer
    x = 297,273.25

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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.