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Finding the Fourth Proportional to 483,443.28, 666,937.08 and 322,140.96

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Solution

The fourth proportional to 483,443.28, 666,937.08 and 322,140.96 is: 444,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,443.28 : 666,937.08 = 322,140.96 : x
  2. Step 2: Convert to fraction form
    483,443.28/666,937.08 = 322,140.96/x
  3. Step 3: Cross multiply
    483,443.28x = 666,937.08 × 322,140.96
  4. Step 4: Simplify right side
    483,443.28x = 214,847,751,210.80
  5. Step 5: Solve for x
    x = 214,847,751,210.80/483,443.28
  6. Step 6: Final answer
    x = 444,411.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.