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Finding the Fourth Proportional to 524,832.80, 787,346.40 and 169,858.40

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Solution

The fourth proportional to 524,832.80, 787,346.40 and 169,858.40 is: 254,819.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,832.80 : 787,346.40 = 169,858.40 : x
  2. Step 2: Convert to fraction form
    524,832.80/787,346.40 = 169,858.40/x
  3. Step 3: Cross multiply
    524,832.80x = 787,346.40 × 169,858.40
  4. Step 4: Simplify right side
    524,832.80x = 133,737,399,749.76
  5. Step 5: Solve for x
    x = 133,737,399,749.76/524,832.80
  6. Step 6: Final answer
    x = 254,819.06

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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.