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Finding the Fourth Proportional to 356,399.66, 534,679.20 and 119,735.84

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Solution

The fourth proportional to 356,399.66, 534,679.20 and 119,735.84 is: 179,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,399.66 : 534,679.20 = 119,735.84 : x
  2. Step 2: Convert to fraction form
    356,399.66/534,679.20 = 119,735.84/x
  3. Step 3: Cross multiply
    356,399.66x = 534,679.20 × 119,735.84
  4. Step 4: Simplify right side
    356,399.66x = 64,020,263,142.53
  5. Step 5: Solve for x
    x = 64,020,263,142.53/356,399.66
  6. Step 6: Final answer
    x = 179,630.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.