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Finding the Fourth Proportional to 389,900.84, 537,838.67 and 234,744.27

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Solution

The fourth proportional to 389,900.84, 537,838.67 and 234,744.27 is: 323,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,900.84 : 537,838.67 = 234,744.27 : x
  2. Step 2: Convert to fraction form
    389,900.84/537,838.67 = 234,744.27/x
  3. Step 3: Cross multiply
    389,900.84x = 537,838.67 × 234,744.27
  4. Step 4: Simplify right side
    389,900.84x = 126,254,544,793.20
  5. Step 5: Solve for x
    x = 126,254,544,793.20/389,900.84
  6. Step 6: Final answer
    x = 323,811.94

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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.