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Finding the Fourth Proportional to 312,791, 432,008.04 and 212,014.04

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Solution

The fourth proportional to 312,791, 432,008.04 and 212,014.04 is: 292,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,791 : 432,008.04 = 212,014.04 : x
  2. Step 2: Convert to fraction form
    312,791/432,008.04 = 212,014.04/x
  3. Step 3: Cross multiply
    312,791x = 432,008.04 × 212,014.04
  4. Step 4: Simplify right side
    312,791x = 91,591,769,872.88
  5. Step 5: Solve for x
    x = 91,591,769,872.88/312,791
  6. Step 6: Final answer
    x = 292,820.99

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