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Finding the Fourth Proportional to 352,333.68, 528,648.60 and 219,325.20

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Solution

The fourth proportional to 352,333.68, 528,648.60 and 219,325.20 is: 329,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,333.68 : 528,648.60 = 219,325.20 : x
  2. Step 2: Convert to fraction form
    352,333.68/528,648.60 = 219,325.20/x
  3. Step 3: Cross multiply
    352,333.68x = 528,648.60 × 219,325.20
  4. Step 4: Simplify right side
    352,333.68x = 115,945,959,924.72
  5. Step 5: Solve for x
    x = 115,945,959,924.72/352,333.68
  6. Step 6: Final answer
    x = 329,079.98

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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.