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Finding the Fourth Proportional to 263,999.10, 395,998.65 and 169,520.70

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Solution

The fourth proportional to 263,999.10, 395,998.65 and 169,520.70 is: 254,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,999.10 : 395,998.65 = 169,520.70 : x
  2. Step 2: Convert to fraction form
    263,999.10/395,998.65 = 169,520.70/x
  3. Step 3: Cross multiply
    263,999.10x = 395,998.65 × 169,520.70
  4. Step 4: Simplify right side
    263,999.10x = 67,129,968,347.06
  5. Step 5: Solve for x
    x = 67,129,968,347.06/263,999.10
  6. Step 6: Final answer
    x = 254,281.05

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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.