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Finding the Fourth Proportional to 620,891.92, 931,311.96 and 177,659.92

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Solution

The fourth proportional to 620,891.92, 931,311.96 and 177,659.92 is: 266,482.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,891.92 : 931,311.96 = 177,659.92 : x
  2. Step 2: Convert to fraction form
    620,891.92/931,311.96 = 177,659.92/x
  3. Step 3: Cross multiply
    620,891.92x = 931,311.96 × 177,659.92
  4. Step 4: Simplify right side
    620,891.92x = 165,456,808,308.64
  5. Step 5: Solve for x
    x = 165,456,808,308.64/620,891.92
  6. Step 6: Final answer
    x = 266,482.46

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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.