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Finding the Fourth Proportional to 586,806.75, 809,813.22 and 328,694.76

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Solution

The fourth proportional to 586,806.75, 809,813.22 and 328,694.76 is: 453,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,806.75 : 809,813.22 = 328,694.76 : x
  2. Step 2: Convert to fraction form
    586,806.75/809,813.22 = 328,694.76/x
  3. Step 3: Cross multiply
    586,806.75x = 809,813.22 × 328,694.76
  4. Step 4: Simplify right side
    586,806.75x = 266,181,361,992.73
  5. Step 5: Solve for x
    x = 266,181,361,992.73/586,806.75
  6. Step 6: Final answer
    x = 453,609.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.