Home / 418,260.43-626,876.70-193,316.55

Finding the Fourth Proportional to 418,260.43, 626,876.70 and 193,316.55

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Solution

The fourth proportional to 418,260.43, 626,876.70 and 193,316.55 is: 289,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,260.43 : 626,876.70 = 193,316.55 : x
  2. Step 2: Convert to fraction form
    418,260.43/626,876.70 = 193,316.55/x
  3. Step 3: Cross multiply
    418,260.43x = 626,876.70 × 193,316.55
  4. Step 4: Simplify right side
    418,260.43x = 121,185,640,919.39
  5. Step 5: Solve for x
    x = 121,185,640,919.39/418,260.43
  6. Step 6: Final answer
    x = 289,737.28

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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.