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Finding the Fourth Proportional to 484,642.96, 669,367.20 and 323,217.46

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Solution

The fourth proportional to 484,642.96, 669,367.20 and 323,217.46 is: 446,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,642.96 : 669,367.20 = 323,217.46 : x
  2. Step 2: Convert to fraction form
    484,642.96/669,367.20 = 323,217.46/x
  3. Step 3: Cross multiply
    484,642.96x = 669,367.20 × 323,217.46
  4. Step 4: Simplify right side
    484,642.96x = 216,351,166,191.31
  5. Step 5: Solve for x
    x = 216,351,166,191.31/484,642.96
  6. Step 6: Final answer
    x = 446,413.51

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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.