Home / 377,519.20-520,987.45-205,448.27

Finding the Fourth Proportional to 377,519.20, 520,987.45 and 205,448.27

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Solution

The fourth proportional to 377,519.20, 520,987.45 and 205,448.27 is: 283,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,519.20 : 520,987.45 = 205,448.27 : x
  2. Step 2: Convert to fraction form
    377,519.20/520,987.45 = 205,448.27/x
  3. Step 3: Cross multiply
    377,519.20x = 520,987.45 × 205,448.27
  4. Step 4: Simplify right side
    377,519.20x = 107,035,967,175.65
  5. Step 5: Solve for x
    x = 107,035,967,175.65/377,519.20
  6. Step 6: Final answer
    x = 283,524.57

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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.