Home / 816,519.83-1,126,801.74-449,020.66

Finding the Fourth Proportional to 816,519.83, 1,126,801.74 and 449,020.66

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Solution

The fourth proportional to 816,519.83, 1,126,801.74 and 449,020.66 is: 619,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,519.83 : 1,126,801.74 = 449,020.66 : x
  2. Step 2: Convert to fraction form
    816,519.83/1,126,801.74 = 449,020.66/x
  3. Step 3: Cross multiply
    816,519.83x = 1,126,801.74 × 449,020.66
  4. Step 4: Simplify right side
    816,519.83x = 505,957,256,900.07
  5. Step 5: Solve for x
    x = 505,957,256,900.07/816,519.83
  6. Step 6: Final answer
    x = 619,650.91

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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.