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Finding the Fourth Proportional to 527,412.32, 791,031 and 190,388.32

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Solution

The fourth proportional to 527,412.32, 791,031 and 190,388.32 is: 285,550.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,412.32 : 791,031 = 190,388.32 : x
  2. Step 2: Convert to fraction form
    527,412.32/791,031 = 190,388.32/x
  3. Step 3: Cross multiply
    527,412.32x = 791,031 × 190,388.32
  4. Step 4: Simplify right side
    527,412.32x = 150,603,063,157.92
  5. Step 5: Solve for x
    x = 150,603,063,157.92/527,412.32
  6. Step 6: Final answer
    x = 285,550.90

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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.