Home / 613,934.20-921,002.10-193,108.60

Finding the Fourth Proportional to 613,934.20, 921,002.10 and 193,108.60

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Solution

The fourth proportional to 613,934.20, 921,002.10 and 193,108.60 is: 289,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,934.20 : 921,002.10 = 193,108.60 : x
  2. Step 2: Convert to fraction form
    613,934.20/921,002.10 = 193,108.60/x
  3. Step 3: Cross multiply
    613,934.20x = 921,002.10 × 193,108.60
  4. Step 4: Simplify right side
    613,934.20x = 177,853,426,128.06
  5. Step 5: Solve for x
    x = 177,853,426,128.06/613,934.20
  6. Step 6: Final answer
    x = 289,694.61

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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.