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Finding the Fourth Proportional to 671,329, 1,007,388.78 and 297,355.24

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Solution

The fourth proportional to 671,329, 1,007,388.78 and 297,355.24 is: 446,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,329 : 1,007,388.78 = 297,355.24 : x
  2. Step 2: Convert to fraction form
    671,329/1,007,388.78 = 297,355.24/x
  3. Step 3: Cross multiply
    671,329x = 1,007,388.78 × 297,355.24
  4. Step 4: Simplify right side
    671,329x = 299,552,332,450.21
  5. Step 5: Solve for x
    x = 299,552,332,450.21/671,329
  6. Step 6: Final answer
    x = 446,207.94

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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.