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Finding the Fourth Proportional to 368,482.70, 551,838.29 and 210,231.38

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Solution

The fourth proportional to 368,482.70, 551,838.29 and 210,231.38 is: 314,841.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,482.70 : 551,838.29 = 210,231.38 : x
  2. Step 2: Convert to fraction form
    368,482.70/551,838.29 = 210,231.38/x
  3. Step 3: Cross multiply
    368,482.70x = 551,838.29 × 210,231.38
  4. Step 4: Simplify right side
    368,482.70x = 116,013,722,484.35
  5. Step 5: Solve for x
    x = 116,013,722,484.35/368,482.70
  6. Step 6: Final answer
    x = 314,841.71

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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.