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Finding the Fourth Proportional to 484,608.40, 726,826.20 and 306,797.20

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Solution

The fourth proportional to 484,608.40, 726,826.20 and 306,797.20 is: 460,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,608.40 : 726,826.20 = 306,797.20 : x
  2. Step 2: Convert to fraction form
    484,608.40/726,826.20 = 306,797.20/x
  3. Step 3: Cross multiply
    484,608.40x = 726,826.20 × 306,797.20
  4. Step 4: Simplify right side
    484,608.40x = 222,988,243,046.64
  5. Step 5: Solve for x
    x = 222,988,243,046.64/484,608.40
  6. Step 6: Final answer
    x = 460,141.10

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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.