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Finding the Fourth Proportional to 332,628.79, 459,028.17 and 189,388.90

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Solution

The fourth proportional to 332,628.79, 459,028.17 and 189,388.90 is: 261,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,628.79 : 459,028.17 = 189,388.90 : x
  2. Step 2: Convert to fraction form
    332,628.79/459,028.17 = 189,388.90/x
  3. Step 3: Cross multiply
    332,628.79x = 459,028.17 × 189,388.90
  4. Step 4: Simplify right side
    332,628.79x = 86,934,840,185.31
  5. Step 5: Solve for x
    x = 86,934,840,185.31/332,628.79
  6. Step 6: Final answer
    x = 261,356.93

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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.