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Finding the Fourth Proportional to 368,144.10, 551,406.78 and 304,239.96

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Solution

The fourth proportional to 368,144.10, 551,406.78 and 304,239.96 is: 455,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,144.10 : 551,406.78 = 304,239.96 : x
  2. Step 2: Convert to fraction form
    368,144.10/551,406.78 = 304,239.96/x
  3. Step 3: Cross multiply
    368,144.10x = 551,406.78 × 304,239.96
  4. Step 4: Simplify right side
    368,144.10x = 167,759,976,690.93
  5. Step 5: Solve for x
    x = 167,759,976,690.93/368,144.10
  6. Step 6: Final answer
    x = 455,691.06

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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.