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Finding the Fourth Proportional to 307,793.34, 424,931.49 and 234,621.77

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Solution

The fourth proportional to 307,793.34, 424,931.49 and 234,621.77 is: 323,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,793.34 : 424,931.49 = 234,621.77 : x
  2. Step 2: Convert to fraction form
    307,793.34/424,931.49 = 234,621.77/x
  3. Step 3: Cross multiply
    307,793.34x = 424,931.49 × 234,621.77
  4. Step 4: Simplify right side
    307,793.34x = 99,698,176,187.88
  5. Step 5: Solve for x
    x = 99,698,176,187.88/307,793.34
  6. Step 6: Final answer
    x = 323,912.71

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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.