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Finding the Fourth Proportional to 332,978.70, 459,422.01 and 189,735.69

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Solution

The fourth proportional to 332,978.70, 459,422.01 and 189,735.69 is: 261,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,978.70 : 459,422.01 = 189,735.69 : x
  2. Step 2: Convert to fraction form
    332,978.70/459,422.01 = 189,735.69/x
  3. Step 3: Cross multiply
    332,978.70x = 459,422.01 × 189,735.69
  4. Step 4: Simplify right side
    332,978.70x = 87,168,752,068.54
  5. Step 5: Solve for x
    x = 87,168,752,068.54/332,978.70
  6. Step 6: Final answer
    x = 261,784.77

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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.