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Finding the Fourth Proportional to 322,824.60, 483,929.70 and 251,707.80

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Solution

The fourth proportional to 322,824.60, 483,929.70 and 251,707.80 is: 377,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,824.60 : 483,929.70 = 251,707.80 : x
  2. Step 2: Convert to fraction form
    322,824.60/483,929.70 = 251,707.80/x
  3. Step 3: Cross multiply
    322,824.60x = 483,929.70 × 251,707.80
  4. Step 4: Simplify right side
    322,824.60x = 121,808,880,141.66
  5. Step 5: Solve for x
    x = 121,808,880,141.66/322,824.60
  6. Step 6: Final answer
    x = 377,322.17

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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.