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Finding the Fourth Proportional to 484,126.80, 726,190.20 and 306,056.40

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Solution

The fourth proportional to 484,126.80, 726,190.20 and 306,056.40 is: 459,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,126.80 : 726,190.20 = 306,056.40 : x
  2. Step 2: Convert to fraction form
    484,126.80/726,190.20 = 306,056.40/x
  3. Step 3: Cross multiply
    484,126.80x = 726,190.20 × 306,056.40
  4. Step 4: Simplify right side
    484,126.80x = 222,255,158,327.28
  5. Step 5: Solve for x
    x = 222,255,158,327.28/484,126.80
  6. Step 6: Final answer
    x = 459,084.60

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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.