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Finding the Fourth Proportional to 553,933.59, 764,301.54 and 349,738.86

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Solution

The fourth proportional to 553,933.59, 764,301.54 and 349,738.86 is: 482,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,933.59 : 764,301.54 = 349,738.86 : x
  2. Step 2: Convert to fraction form
    553,933.59/764,301.54 = 349,738.86/x
  3. Step 3: Cross multiply
    553,933.59x = 764,301.54 × 349,738.86
  4. Step 4: Simplify right side
    553,933.59x = 267,305,949,295.84
  5. Step 5: Solve for x
    x = 267,305,949,295.84/553,933.59
  6. Step 6: Final answer
    x = 482,559.56

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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.