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Finding the Fourth Proportional to 394,038.40, 591,057.60 and 236,444.80

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Solution

The fourth proportional to 394,038.40, 591,057.60 and 236,444.80 is: 354,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,038.40 : 591,057.60 = 236,444.80 : x
  2. Step 2: Convert to fraction form
    394,038.40/591,057.60 = 236,444.80/x
  3. Step 3: Cross multiply
    394,038.40x = 591,057.60 × 236,444.80
  4. Step 4: Simplify right side
    394,038.40x = 139,752,496,020.48
  5. Step 5: Solve for x
    x = 139,752,496,020.48/394,038.40
  6. Step 6: Final answer
    x = 354,667.20

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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.