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Finding the Fourth Proportional to 322,818.60, 483,920.70 and 251,701.80

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Solution

The fourth proportional to 322,818.60, 483,920.70 and 251,701.80 is: 377,313.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,818.60 : 483,920.70 = 251,701.80 : x
  2. Step 2: Convert to fraction form
    322,818.60/483,920.70 = 251,701.80/x
  3. Step 3: Cross multiply
    322,818.60x = 483,920.70 × 251,701.80
  4. Step 4: Simplify right side
    322,818.60x = 121,803,711,247.26
  5. Step 5: Solve for x
    x = 121,803,711,247.26/322,818.60
  6. Step 6: Final answer
    x = 377,313.18

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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.