Home / 859,338.72-1,185,847.20-477,388.80

Finding the Fourth Proportional to 859,338.72, 1,185,847.20 and 477,388.80

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Solution

The fourth proportional to 859,338.72, 1,185,847.20 and 477,388.80 is: 658,774.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,338.72 : 1,185,847.20 = 477,388.80 : x
  2. Step 2: Convert to fraction form
    859,338.72/1,185,847.20 = 477,388.80/x
  3. Step 3: Cross multiply
    859,338.72x = 1,185,847.20 × 477,388.80
  4. Step 4: Simplify right side
    859,338.72x = 566,110,171,791.36
  5. Step 5: Solve for x
    x = 566,110,171,791.36/859,338.72
  6. Step 6: Final answer
    x = 658,774.19

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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.