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Finding the Fourth Proportional to 363,003.10, 543,467.85 and 325,678.30

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Solution

The fourth proportional to 363,003.10, 543,467.85 and 325,678.30 is: 487,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,003.10 : 543,467.85 = 325,678.30 : x
  2. Step 2: Convert to fraction form
    363,003.10/543,467.85 = 325,678.30/x
  3. Step 3: Cross multiply
    363,003.10x = 543,467.85 × 325,678.30
  4. Step 4: Simplify right side
    363,003.10x = 176,995,685,492.66
  5. Step 5: Solve for x
    x = 176,995,685,492.66/363,003.10
  6. Step 6: Final answer
    x = 487,587.26

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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.