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Finding the Fourth Proportional to 609,989.94, 915,014.07 and 294,712.02

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Solution

The fourth proportional to 609,989.94, 915,014.07 and 294,712.02 is: 442,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,989.94 : 915,014.07 = 294,712.02 : x
  2. Step 2: Convert to fraction form
    609,989.94/915,014.07 = 294,712.02/x
  3. Step 3: Cross multiply
    609,989.94x = 915,014.07 × 294,712.02
  4. Step 4: Simplify right side
    609,989.94x = 269,665,644,898.12
  5. Step 5: Solve for x
    x = 269,665,644,898.12/609,989.94
  6. Step 6: Final answer
    x = 442,082.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.