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Finding the Fourth Proportional to 351,216.50, 484,349.78 and 233,134.56

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Solution

The fourth proportional to 351,216.50, 484,349.78 and 233,134.56 is: 321,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,216.50 : 484,349.78 = 233,134.56 : x
  2. Step 2: Convert to fraction form
    351,216.50/484,349.78 = 233,134.56/x
  3. Step 3: Cross multiply
    351,216.50x = 484,349.78 × 233,134.56
  4. Step 4: Simplify right side
    351,216.50x = 112,918,672,846.40
  5. Step 5: Solve for x
    x = 112,918,672,846.40/351,216.50
  6. Step 6: Final answer
    x = 321,507.31

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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.