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Finding the Fourth Proportional to 482,091.20, 723,007.20 and 201,550.40

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Solution

The fourth proportional to 482,091.20, 723,007.20 and 201,550.40 is: 302,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,091.20 : 723,007.20 = 201,550.40 : x
  2. Step 2: Convert to fraction form
    482,091.20/723,007.20 = 201,550.40/x
  3. Step 3: Cross multiply
    482,091.20x = 723,007.20 × 201,550.40
  4. Step 4: Simplify right side
    482,091.20x = 145,722,390,362.88
  5. Step 5: Solve for x
    x = 145,722,390,362.88/482,091.20
  6. Step 6: Final answer
    x = 302,271.42

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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.