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Finding the Fourth Proportional to 389,898.84, 537,835.78 and 234,742.12

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Solution

The fourth proportional to 389,898.84, 537,835.78 and 234,742.12 is: 323,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,898.84 : 537,835.78 = 234,742.12 : x
  2. Step 2: Convert to fraction form
    389,898.84/537,835.78 = 234,742.12/x
  3. Step 3: Cross multiply
    389,898.84x = 537,835.78 × 234,742.12
  4. Step 4: Simplify right side
    389,898.84x = 126,252,711,209.05
  5. Step 5: Solve for x
    x = 126,252,711,209.05/389,898.84
  6. Step 6: Final answer
    x = 323,808.89

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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.