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Finding the Fourth Proportional to 322,362.40, 483,543.60 and 308,711.20

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Solution

The fourth proportional to 322,362.40, 483,543.60 and 308,711.20 is: 463,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,362.40 : 483,543.60 = 308,711.20 : x
  2. Step 2: Convert to fraction form
    322,362.40/483,543.60 = 308,711.20/x
  3. Step 3: Cross multiply
    322,362.40x = 483,543.60 × 308,711.20
  4. Step 4: Simplify right side
    322,362.40x = 149,275,325,008.32
  5. Step 5: Solve for x
    x = 149,275,325,008.32/322,362.40
  6. Step 6: Final answer
    x = 463,066.80

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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.