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Finding the Fourth Proportional to 527,893.20, 791,832.60 and 172,918.80

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Solution

The fourth proportional to 527,893.20, 791,832.60 and 172,918.80 is: 259,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,893.20 : 791,832.60 = 172,918.80 : x
  2. Step 2: Convert to fraction form
    527,893.20/791,832.60 = 172,918.80/x
  3. Step 3: Cross multiply
    527,893.20x = 791,832.60 × 172,918.80
  4. Step 4: Simplify right side
    527,893.20x = 136,922,742,992.88
  5. Step 5: Solve for x
    x = 136,922,742,992.88/527,893.20
  6. Step 6: Final answer
    x = 259,375.84

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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.