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Finding the Fourth Proportional to 680,767.03, 939,044.03 and 419,164.44

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Solution

The fourth proportional to 680,767.03, 939,044.03 and 419,164.44 is: 578,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,767.03 : 939,044.03 = 419,164.44 : x
  2. Step 2: Convert to fraction form
    680,767.03/939,044.03 = 419,164.44/x
  3. Step 3: Cross multiply
    680,767.03x = 939,044.03 × 419,164.44
  4. Step 4: Simplify right side
    680,767.03x = 393,613,861,322.98
  5. Step 5: Solve for x
    x = 393,613,861,322.98/680,767.03
  6. Step 6: Final answer
    x = 578,191.72

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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.