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Finding the Fourth Proportional to 544,956.72, 817,439.64 and 189,970.17

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Solution

The fourth proportional to 544,956.72, 817,439.64 and 189,970.17 is: 284,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,956.72 : 817,439.64 = 189,970.17 : x
  2. Step 2: Convert to fraction form
    544,956.72/817,439.64 = 189,970.17/x
  3. Step 3: Cross multiply
    544,956.72x = 817,439.64 × 189,970.17
  4. Step 4: Simplify right side
    544,956.72x = 155,289,147,375.54
  5. Step 5: Solve for x
    x = 155,289,147,375.54/544,956.72
  6. Step 6: Final answer
    x = 284,956.84

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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.