Home / 664,451.10-996,641.82-191,117.88

Finding the Fourth Proportional to 664,451.10, 996,641.82 and 191,117.88

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Solution

The fourth proportional to 664,451.10, 996,641.82 and 191,117.88 is: 286,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,451.10 : 996,641.82 = 191,117.88 : x
  2. Step 2: Convert to fraction form
    664,451.10/996,641.82 = 191,117.88/x
  3. Step 3: Cross multiply
    664,451.10x = 996,641.82 × 191,117.88
  4. Step 4: Simplify right side
    664,451.10x = 190,476,071,757.74
  5. Step 5: Solve for x
    x = 190,476,071,757.74/664,451.10
  6. Step 6: Final answer
    x = 286,666.80

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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.