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Finding the Fourth Proportional to 484,261.60, 726,392.40 and 422,053.60

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Solution

The fourth proportional to 484,261.60, 726,392.40 and 422,053.60 is: 633,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,261.60 : 726,392.40 = 422,053.60 : x
  2. Step 2: Convert to fraction form
    484,261.60/726,392.40 = 422,053.60/x
  3. Step 3: Cross multiply
    484,261.60x = 726,392.40 × 422,053.60
  4. Step 4: Simplify right side
    484,261.60x = 306,576,527,432.64
  5. Step 5: Solve for x
    x = 306,576,527,432.64/484,261.60
  6. Step 6: Final answer
    x = 633,080.40

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Similar ratio
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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.