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Finding the Fourth Proportional to 368,484.70, 551,841.29 and 210,233.38

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Solution

The fourth proportional to 368,484.70, 551,841.29 and 210,233.38 is: 314,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,484.70 : 551,841.29 = 210,233.38 : x
  2. Step 2: Convert to fraction form
    368,484.70/551,841.29 = 210,233.38/x
  3. Step 3: Cross multiply
    368,484.70x = 551,841.29 × 210,233.38
  4. Step 4: Simplify right side
    368,484.70x = 116,015,459,620.26
  5. Step 5: Solve for x
    x = 116,015,459,620.26/368,484.70
  6. Step 6: Final answer
    x = 314,844.71

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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.