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Finding the Fourth Proportional to 322,039.20, 483,058.80 and 203,325.60

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Solution

The fourth proportional to 322,039.20, 483,058.80 and 203,325.60 is: 304,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,039.20 : 483,058.80 = 203,325.60 : x
  2. Step 2: Convert to fraction form
    322,039.20/483,058.80 = 203,325.60/x
  3. Step 3: Cross multiply
    322,039.20x = 483,058.80 × 203,325.60
  4. Step 4: Simplify right side
    322,039.20x = 98,218,220,345.28
  5. Step 5: Solve for x
    x = 98,218,220,345.28/322,039.20
  6. Step 6: Final answer
    x = 304,988.40

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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.