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Finding the Fourth Proportional to 568,649.34, 852,688.79 and 189,436.76

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Solution

The fourth proportional to 568,649.34, 852,688.79 and 189,436.76 is: 284,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,649.34 : 852,688.79 = 189,436.76 : x
  2. Step 2: Convert to fraction form
    568,649.34/852,688.79 = 189,436.76/x
  3. Step 3: Cross multiply
    568,649.34x = 852,688.79 × 189,436.76
  4. Step 4: Simplify right side
    568,649.34x = 161,530,596,455.29
  5. Step 5: Solve for x
    x = 161,530,596,455.29/568,649.34
  6. Step 6: Final answer
    x = 284,060.11

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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.