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Finding the Fourth Proportional to 321,477.49, 482,117.78 and 222,275.17

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Solution

The fourth proportional to 321,477.49, 482,117.78 and 222,275.17 is: 333,344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,477.49 : 482,117.78 = 222,275.17 : x
  2. Step 2: Convert to fraction form
    321,477.49/482,117.78 = 222,275.17/x
  3. Step 3: Cross multiply
    321,477.49x = 482,117.78 × 222,275.17
  4. Step 4: Simplify right side
    321,477.49x = 107,162,810,859.92
  5. Step 5: Solve for x
    x = 107,162,810,859.92/321,477.49
  6. Step 6: Final answer
    x = 333,344.68

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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.