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Finding the Fourth Proportional to 614,991.68, 922,753.91 and 330,350.09

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Solution

The fourth proportional to 614,991.68, 922,753.91 and 330,350.09 is: 495,668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,991.68 : 922,753.91 = 330,350.09 : x
  2. Step 2: Convert to fraction form
    614,991.68/922,753.91 = 330,350.09/x
  3. Step 3: Cross multiply
    614,991.68x = 922,753.91 × 330,350.09
  4. Step 4: Simplify right side
    614,991.68x = 304,831,840,349.11
  5. Step 5: Solve for x
    x = 304,831,840,349.11/614,991.68
  6. Step 6: Final answer
    x = 495,668.24

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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.