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Finding the Fourth Proportional to 293,626.40, 440,439.60 and 254,260.40

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Solution

The fourth proportional to 293,626.40, 440,439.60 and 254,260.40 is: 381,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,626.40 : 440,439.60 = 254,260.40 : x
  2. Step 2: Convert to fraction form
    293,626.40/440,439.60 = 254,260.40/x
  3. Step 3: Cross multiply
    293,626.40x = 440,439.60 × 254,260.40
  4. Step 4: Simplify right side
    293,626.40x = 111,986,348,871.84
  5. Step 5: Solve for x
    x = 111,986,348,871.84/293,626.40
  6. Step 6: Final answer
    x = 381,390.60

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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.