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Finding the Fourth Proportional to 367,460.80, 551,191.20 and 305,252.80

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Solution

The fourth proportional to 367,460.80, 551,191.20 and 305,252.80 is: 457,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,460.80 : 551,191.20 = 305,252.80 : x
  2. Step 2: Convert to fraction form
    367,460.80/551,191.20 = 305,252.80/x
  3. Step 3: Cross multiply
    367,460.80x = 551,191.20 × 305,252.80
  4. Step 4: Simplify right side
    367,460.80x = 168,252,657,135.36
  5. Step 5: Solve for x
    x = 168,252,657,135.36/367,460.80
  6. Step 6: Final answer
    x = 457,879.20

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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.