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Finding the Fourth Proportional to 295,280.55, 442,920.83 and 206,806.95

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Solution

The fourth proportional to 295,280.55, 442,920.83 and 206,806.95 is: 310,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,280.55 : 442,920.83 = 206,806.95 : x
  2. Step 2: Convert to fraction form
    295,280.55/442,920.83 = 206,806.95/x
  3. Step 3: Cross multiply
    295,280.55x = 442,920.83 × 206,806.95
  4. Step 4: Simplify right side
    295,280.55x = 91,599,104,909.73
  5. Step 5: Solve for x
    x = 91,599,104,909.73/295,280.55
  6. Step 6: Final answer
    x = 310,210.43

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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.