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Finding the Fourth Proportional to 683,059.37, 943,228.60 and 425,378.79

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Solution

The fourth proportional to 683,059.37, 943,228.60 and 425,378.79 is: 587,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,059.37 : 943,228.60 = 425,378.79 : x
  2. Step 2: Convert to fraction form
    683,059.37/943,228.60 = 425,378.79/x
  3. Step 3: Cross multiply
    683,059.37x = 943,228.60 × 425,378.79
  4. Step 4: Simplify right side
    683,059.37x = 401,229,439,497.95
  5. Step 5: Solve for x
    x = 401,229,439,497.95/683,059.37
  6. Step 6: Final answer
    x = 587,400.54

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Similar ratio
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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.