Home / 536,132.21-739,237.39-399,929.69

Finding the Fourth Proportional to 536,132.21, 739,237.39 and 399,929.69

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Solution

The fourth proportional to 536,132.21, 739,237.39 and 399,929.69 is: 551,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,132.21 : 739,237.39 = 399,929.69 : x
  2. Step 2: Convert to fraction form
    536,132.21/739,237.39 = 399,929.69/x
  3. Step 3: Cross multiply
    536,132.21x = 739,237.39 × 399,929.69
  4. Step 4: Simplify right side
    536,132.21x = 295,642,981,067.38
  5. Step 5: Solve for x
    x = 295,642,981,067.38/536,132.21
  6. Step 6: Final answer
    x = 551,436.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.