Home / 814,130.68-1,122,202.20-641,767.56

Finding the Fourth Proportional to 814,130.68, 1,122,202.20 and 641,767.56

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Solution

The fourth proportional to 814,130.68, 1,122,202.20 and 641,767.56 is: 884,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,130.68 : 1,122,202.20 = 641,767.56 : x
  2. Step 2: Convert to fraction form
    814,130.68/1,122,202.20 = 641,767.56/x
  3. Step 3: Cross multiply
    814,130.68x = 1,122,202.20 × 641,767.56
  4. Step 4: Simplify right side
    814,130.68x = 720,192,967,720.63
  5. Step 5: Solve for x
    x = 720,192,967,720.63/814,130.68
  6. Step 6: Final answer
    x = 884,615.93

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Double scale
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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.