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Finding the Fourth Proportional to 410,508.47, 566,892.97 and 388,143.96

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Solution

The fourth proportional to 410,508.47, 566,892.97 and 388,143.96 is: 536,008.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,508.47 : 566,892.97 = 388,143.96 : x
  2. Step 2: Convert to fraction form
    410,508.47/566,892.97 = 388,143.96/x
  3. Step 3: Cross multiply
    410,508.47x = 566,892.97 × 388,143.96
  4. Step 4: Simplify right side
    410,508.47x = 220,036,082,271.96
  5. Step 5: Solve for x
    x = 220,036,082,271.96/410,508.47
  6. Step 6: Final answer
    x = 536,008.63

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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.