Home / 891,091.80-1,336,508.10-259,939.80

Finding the Fourth Proportional to 891,091.80, 1,336,508.10 and 259,939.80

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Solution

The fourth proportional to 891,091.80, 1,336,508.10 and 259,939.80 is: 389,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,091.80 : 1,336,508.10 = 259,939.80 : x
  2. Step 2: Convert to fraction form
    891,091.80/1,336,508.10 = 259,939.80/x
  3. Step 3: Cross multiply
    891,091.80x = 1,336,508.10 × 259,939.80
  4. Step 4: Simplify right side
    891,091.80x = 347,411,648,212.38
  5. Step 5: Solve for x
    x = 347,411,648,212.38/891,091.80
  6. Step 6: Final answer
    x = 389,871.89

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1.5x scale

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.