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Finding the Fourth Proportional to 263,460.60, 395,190.90 and 66,468.60

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Solution

The fourth proportional to 263,460.60, 395,190.90 and 66,468.60 is: 99,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,460.60 : 395,190.90 = 66,468.60 : x
  2. Step 2: Convert to fraction form
    263,460.60/395,190.90 = 66,468.60/x
  3. Step 3: Cross multiply
    263,460.60x = 395,190.90 × 66,468.60
  4. Step 4: Simplify right side
    263,460.60x = 26,267,785,855.74
  5. Step 5: Solve for x
    x = 26,267,785,855.74/263,460.60
  6. Step 6: Final answer
    x = 99,702.90

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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.