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Finding the Fourth Proportional to 526,800.20, 790,120.08 and 171,813.64

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Solution

The fourth proportional to 526,800.20, 790,120.08 and 171,813.64 is: 257,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,800.20 : 790,120.08 = 171,813.64 : x
  2. Step 2: Convert to fraction form
    526,800.20/790,120.08 = 171,813.64/x
  3. Step 3: Cross multiply
    526,800.20x = 790,120.08 × 171,813.64
  4. Step 4: Simplify right side
    526,800.20x = 135,753,406,981.89
  5. Step 5: Solve for x
    x = 135,753,406,981.89/526,800.20
  6. Step 6: Final answer
    x = 257,694.30

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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.