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Finding the Fourth Proportional to 408,651.48, 612,458.10 and 183,771.72

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Solution

The fourth proportional to 408,651.48, 612,458.10 and 183,771.72 is: 275,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,651.48 : 612,458.10 = 183,771.72 : x
  2. Step 2: Convert to fraction form
    408,651.48/612,458.10 = 183,771.72/x
  3. Step 3: Cross multiply
    408,651.48x = 612,458.10 × 183,771.72
  4. Step 4: Simplify right side
    408,651.48x = 112,552,478,464.93
  5. Step 5: Solve for x
    x = 112,552,478,464.93/408,651.48
  6. Step 6: Final answer
    x = 275,424.13

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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.