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Finding the Fourth Proportional to 507,160.24, 699,903 and 280,805.76

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Solution

The fourth proportional to 507,160.24, 699,903 and 280,805.76 is: 387,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,160.24 : 699,903 = 280,805.76 : x
  2. Step 2: Convert to fraction form
    507,160.24/699,903 = 280,805.76/x
  3. Step 3: Cross multiply
    507,160.24x = 699,903 × 280,805.76
  4. Step 4: Simplify right side
    507,160.24x = 196,536,793,841.28
  5. Step 5: Solve for x
    x = 196,536,793,841.28/507,160.24
  6. Step 6: Final answer
    x = 387,524.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.