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Finding the Fourth Proportional to 618,781.60, 928,173.19 and 169,506.42

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Solution

The fourth proportional to 618,781.60, 928,173.19 and 169,506.42 is: 254,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,781.60 : 928,173.19 = 169,506.42 : x
  2. Step 2: Convert to fraction form
    618,781.60/928,173.19 = 169,506.42/x
  3. Step 3: Cross multiply
    618,781.60x = 928,173.19 × 169,506.42
  4. Step 4: Simplify right side
    618,781.60x = 157,331,314,576.88
  5. Step 5: Solve for x
    x = 157,331,314,576.88/618,781.60
  6. Step 6: Final answer
    x = 254,259.85

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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.