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Finding the Fourth Proportional to 368,654.67, 552,981.75 and 210,772.38

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Solution

The fourth proportional to 368,654.67, 552,981.75 and 210,772.38 is: 316,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,654.67 : 552,981.75 = 210,772.38 : x
  2. Step 2: Convert to fraction form
    368,654.67/552,981.75 = 210,772.38/x
  3. Step 3: Cross multiply
    368,654.67x = 552,981.75 × 210,772.38
  4. Step 4: Simplify right side
    368,654.67x = 116,553,279,544.07
  5. Step 5: Solve for x
    x = 116,553,279,544.07/368,654.67
  6. Step 6: Final answer
    x = 316,158.42

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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.