Home / 1,131,840.33-1,561,148.20-768,633.09

Finding the Fourth Proportional to 1,131,840.33, 1,561,148.20 and 768,633.09

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Solution

The fourth proportional to 1,131,840.33, 1,561,148.20 and 768,633.09 is: 1,060,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,840.33 : 1,561,148.20 = 768,633.09 : x
  2. Step 2: Convert to fraction form
    1,131,840.33/1,561,148.20 = 768,633.09/x
  3. Step 3: Cross multiply
    1,131,840.33x = 1,561,148.20 × 768,633.09
  4. Step 4: Simplify right side
    1,131,840.33x = 1,199,950,164,913.94
  5. Step 5: Solve for x
    x = 1,199,950,164,913.94/1,131,840.33
  6. Step 6: Final answer
    x = 1,060,176.19

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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.