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Finding the Fourth Proportional to 620,890.92, 931,310.46 and 177,658.92

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Solution

The fourth proportional to 620,890.92, 931,310.46 and 177,658.92 is: 266,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,890.92 : 931,310.46 = 177,658.92 : x
  2. Step 2: Convert to fraction form
    620,890.92/931,310.46 = 177,658.92/x
  3. Step 3: Cross multiply
    620,890.92x = 931,310.46 × 177,658.92
  4. Step 4: Simplify right side
    620,890.92x = 165,455,610,508.30
  5. Step 5: Solve for x
    x = 165,455,610,508.30/620,890.92
  6. Step 6: Final answer
    x = 266,480.96

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1.5x scale

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.