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Finding the Fourth Proportional to 263,272.60, 394,908.90 and 156,984.40

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Solution

The fourth proportional to 263,272.60, 394,908.90 and 156,984.40 is: 235,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,272.60 : 394,908.90 = 156,984.40 : x
  2. Step 2: Convert to fraction form
    263,272.60/394,908.90 = 156,984.40/x
  3. Step 3: Cross multiply
    263,272.60x = 394,908.90 × 156,984.40
  4. Step 4: Simplify right side
    263,272.60x = 61,994,536,721.16
  5. Step 5: Solve for x
    x = 61,994,536,721.16/263,272.60
  6. Step 6: Final answer
    x = 235,476.60

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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.