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Finding the Fourth Proportional to 413,569.40, 620,462.10 and 133,093.40

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Solution

The fourth proportional to 413,569.40, 620,462.10 and 133,093.40 is: 199,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,569.40 : 620,462.10 = 133,093.40 : x
  2. Step 2: Convert to fraction form
    413,569.40/620,462.10 = 133,093.40/x
  3. Step 3: Cross multiply
    413,569.40x = 620,462.10 × 133,093.40
  4. Step 4: Simplify right side
    413,569.40x = 82,579,410,460.14
  5. Step 5: Solve for x
    x = 82,579,410,460.14/413,569.40
  6. Step 6: Final answer
    x = 199,674.86

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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.