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Finding the Fourth Proportional to 415,307.52, 623,496.96 and 356,520.96

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Solution

The fourth proportional to 415,307.52, 623,496.96 and 356,520.96 is: 535,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,307.52 : 623,496.96 = 356,520.96 : x
  2. Step 2: Convert to fraction form
    415,307.52/623,496.96 = 356,520.96/x
  3. Step 3: Cross multiply
    415,307.52x = 623,496.96 × 356,520.96
  4. Step 4: Simplify right side
    415,307.52x = 222,289,734,736.28
  5. Step 5: Solve for x
    x = 222,289,734,736.28/415,307.52
  6. Step 6: Final answer
    x = 535,241.29

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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.