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Finding the Fourth Proportional to 445,586.70, 668,215.38 and 192,904.14

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Solution

The fourth proportional to 445,586.70, 668,215.38 and 192,904.14 is: 289,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,586.70 : 668,215.38 = 192,904.14 : x
  2. Step 2: Convert to fraction form
    445,586.70/668,215.38 = 192,904.14/x
  3. Step 3: Cross multiply
    445,586.70x = 668,215.38 × 192,904.14
  4. Step 4: Simplify right side
    445,586.70x = 128,901,513,213.67
  5. Step 5: Solve for x
    x = 128,901,513,213.67/445,586.70
  6. Step 6: Final answer
    x = 289,284.92

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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.