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Finding the Fourth Proportional to 521,356.26, 719,682.66 and 441,200.28

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Solution

The fourth proportional to 521,356.26, 719,682.66 and 441,200.28 is: 609,034.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,356.26 : 719,682.66 = 441,200.28 : x
  2. Step 2: Convert to fraction form
    521,356.26/719,682.66 = 441,200.28/x
  3. Step 3: Cross multiply
    521,356.26x = 719,682.66 × 441,200.28
  4. Step 4: Simplify right side
    521,356.26x = 317,524,191,103.15
  5. Step 5: Solve for x
    x = 317,524,191,103.15/521,356.26
  6. Step 6: Final answer
    x = 609,034.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.