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Finding the Fourth Proportional to 502,748.55, 693,561.83 and 445,446.32

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Solution

The fourth proportional to 502,748.55, 693,561.83 and 445,446.32 is: 614,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,748.55 : 693,561.83 = 445,446.32 : x
  2. Step 2: Convert to fraction form
    502,748.55/693,561.83 = 445,446.32/x
  3. Step 3: Cross multiply
    502,748.55x = 693,561.83 × 445,446.32
  4. Step 4: Simplify right side
    502,748.55x = 308,944,559,170.93
  5. Step 5: Solve for x
    x = 308,944,559,170.93/502,748.55
  6. Step 6: Final answer
    x = 614,511.09

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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.