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Finding the Fourth Proportional to 404,661.70, 606,992.55 and 194,709.70

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Solution

The fourth proportional to 404,661.70, 606,992.55 and 194,709.70 is: 292,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,661.70 : 606,992.55 = 194,709.70 : x
  2. Step 2: Convert to fraction form
    404,661.70/606,992.55 = 194,709.70/x
  3. Step 3: Cross multiply
    404,661.70x = 606,992.55 × 194,709.70
  4. Step 4: Simplify right side
    404,661.70x = 118,187,337,312.74
  5. Step 5: Solve for x
    x = 118,187,337,312.74/404,661.70
  6. Step 6: Final answer
    x = 292,064.55

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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.