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Finding the Fourth Proportional to 356,520.20, 534,924.30 and 156,878.60

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Solution

The fourth proportional to 356,520.20, 534,924.30 and 156,878.60 is: 235,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,520.20 : 534,924.30 = 156,878.60 : x
  2. Step 2: Convert to fraction form
    356,520.20/534,924.30 = 156,878.60/x
  3. Step 3: Cross multiply
    356,520.20x = 534,924.30 × 156,878.60
  4. Step 4: Simplify right side
    356,520.20x = 83,918,175,289.98
  5. Step 5: Solve for x
    x = 83,918,175,289.98/356,520.20
  6. Step 6: Final answer
    x = 235,381.26

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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.