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Finding the Fourth Proportional to 768,199.82, 1,060,115.81 and 424,035.83

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Solution

The fourth proportional to 768,199.82, 1,060,115.81 and 424,035.83 is: 585,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,199.82 : 1,060,115.81 = 424,035.83 : x
  2. Step 2: Convert to fraction form
    768,199.82/1,060,115.81 = 424,035.83/x
  3. Step 3: Cross multiply
    768,199.82x = 1,060,115.81 × 424,035.83
  4. Step 4: Simplify right side
    768,199.82x = 449,527,087,389.47
  5. Step 5: Solve for x
    x = 449,527,087,389.47/768,199.82
  6. Step 6: Final answer
    x = 585,169.48

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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.