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Finding the Fourth Proportional to 618,786.84, 928,181.07 and 169,511.70

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Solution

The fourth proportional to 618,786.84, 928,181.07 and 169,511.70 is: 254,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,786.84 : 928,181.07 = 169,511.70 : x
  2. Step 2: Convert to fraction form
    618,786.84/928,181.07 = 169,511.70/x
  3. Step 3: Cross multiply
    618,786.84x = 928,181.07 × 169,511.70
  4. Step 4: Simplify right side
    618,786.84x = 157,337,551,083.52
  5. Step 5: Solve for x
    x = 157,337,551,083.52/618,786.84
  6. Step 6: Final answer
    x = 254,267.77

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1.5x scale

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.