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Finding the Fourth Proportional to 618,808.03, 928,212.90 and 169,532.80

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Solution

The fourth proportional to 618,808.03, 928,212.90 and 169,532.80 is: 254,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,808.03 : 928,212.90 = 169,532.80 : x
  2. Step 2: Convert to fraction form
    618,808.03/928,212.90 = 169,532.80/x
  3. Step 3: Cross multiply
    618,808.03x = 928,212.90 × 169,532.80
  4. Step 4: Simplify right side
    618,808.03x = 157,362,531,933.12
  5. Step 5: Solve for x
    x = 157,362,531,933.12/618,808.03
  6. Step 6: Final answer
    x = 254,299.43

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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.