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Finding the Fourth Proportional to 394,444.20, 591,666.30 and 394,444.20

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Solution

The fourth proportional to 394,444.20, 591,666.30 and 394,444.20 is: 591,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,444.20 : 591,666.30 = 394,444.20 : x
  2. Step 2: Convert to fraction form
    394,444.20/591,666.30 = 394,444.20/x
  3. Step 3: Cross multiply
    394,444.20x = 591,666.30 × 394,444.20
  4. Step 4: Simplify right side
    394,444.20x = 233,379,340,370.46
  5. Step 5: Solve for x
    x = 233,379,340,370.46/394,444.20
  6. Step 6: Final answer
    x = 591,666.30

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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.