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Finding the Fourth Proportional to 354,911.10, 532,366.65 and 325,880.70

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Solution

The fourth proportional to 354,911.10, 532,366.65 and 325,880.70 is: 488,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,911.10 : 532,366.65 = 325,880.70 : x
  2. Step 2: Convert to fraction form
    354,911.10/532,366.65 = 325,880.70/x
  3. Step 3: Cross multiply
    354,911.10x = 532,366.65 × 325,880.70
  4. Step 4: Simplify right side
    354,911.10x = 173,488,016,558.66
  5. Step 5: Solve for x
    x = 173,488,016,558.66/354,911.10
  6. Step 6: Final answer
    x = 488,821.05

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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.