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Finding the Fourth Proportional to 665,069.27, 997,751.52 and 191,717.69

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Solution

The fourth proportional to 665,069.27, 997,751.52 and 191,717.69 is: 287,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,069.27 : 997,751.52 = 191,717.69 : x
  2. Step 2: Convert to fraction form
    665,069.27/997,751.52 = 191,717.69/x
  3. Step 3: Cross multiply
    665,069.27x = 997,751.52 × 191,717.69
  4. Step 4: Simplify right side
    665,069.27x = 191,286,611,619.63
  5. Step 5: Solve for x
    x = 191,286,611,619.63/665,069.27
  6. Step 6: Final answer
    x = 287,619.08

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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.