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Finding the Fourth Proportional to 484,130.80, 726,196.20 and 306,060.40

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Solution

The fourth proportional to 484,130.80, 726,196.20 and 306,060.40 is: 459,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,130.80 : 726,196.20 = 306,060.40 : x
  2. Step 2: Convert to fraction form
    484,130.80/726,196.20 = 306,060.40/x
  3. Step 3: Cross multiply
    484,130.80x = 726,196.20 × 306,060.40
  4. Step 4: Simplify right side
    484,130.80x = 222,259,899,450.48
  5. Step 5: Solve for x
    x = 222,259,899,450.48/484,130.80
  6. Step 6: Final answer
    x = 459,090.60

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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.