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Finding the Fourth Proportional to 332,627.78, 459,026.78 and 189,387.88

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Solution

The fourth proportional to 332,627.78, 459,026.78 and 189,387.88 is: 261,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,627.78 : 459,026.78 = 189,387.88 : x
  2. Step 2: Convert to fraction form
    332,627.78/459,026.78 = 189,387.88/x
  3. Step 3: Cross multiply
    332,627.78x = 459,026.78 × 189,387.88
  4. Step 4: Simplify right side
    332,627.78x = 86,934,108,727.43
  5. Step 5: Solve for x
    x = 86,934,108,727.43/332,627.78
  6. Step 6: Final answer
    x = 261,355.53

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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.