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Finding the Fourth Proportional to 394,340.40, 591,510.60 and 236,876.40

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Solution

The fourth proportional to 394,340.40, 591,510.60 and 236,876.40 is: 355,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,340.40 : 591,510.60 = 236,876.40 : x
  2. Step 2: Convert to fraction form
    394,340.40/591,510.60 = 236,876.40/x
  3. Step 3: Cross multiply
    394,340.40x = 591,510.60 × 236,876.40
  4. Step 4: Simplify right side
    394,340.40x = 140,114,901,489.84
  5. Step 5: Solve for x
    x = 140,114,901,489.84/394,340.40
  6. Step 6: Final answer
    x = 355,314.60

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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.