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Finding the Fourth Proportional to 323,219.10, 484,828.65 and 211,244.70

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Solution

The fourth proportional to 323,219.10, 484,828.65 and 211,244.70 is: 316,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,219.10 : 484,828.65 = 211,244.70 : x
  2. Step 2: Convert to fraction form
    323,219.10/484,828.65 = 211,244.70/x
  3. Step 3: Cross multiply
    323,219.10x = 484,828.65 × 211,244.70
  4. Step 4: Simplify right side
    323,219.10x = 102,417,482,720.66
  5. Step 5: Solve for x
    x = 102,417,482,720.66/323,219.10
  6. Step 6: Final answer
    x = 316,867.05

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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.