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Finding the Fourth Proportional to 484,720.62, 668,913.03 and 269,855.16

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Solution

The fourth proportional to 484,720.62, 668,913.03 and 269,855.16 is: 372,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,720.62 : 668,913.03 = 269,855.16 : x
  2. Step 2: Convert to fraction form
    484,720.62/668,913.03 = 269,855.16/x
  3. Step 3: Cross multiply
    484,720.62x = 668,913.03 × 269,855.16
  4. Step 4: Simplify right side
    484,720.62x = 180,509,632,736.74
  5. Step 5: Solve for x
    x = 180,509,632,736.74/484,720.62
  6. Step 6: Final answer
    x = 372,399.33

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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.