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Finding the Fourth Proportional to 506,910.82, 699,489.52 and 302,921.24

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Solution

The fourth proportional to 506,910.82, 699,489.52 and 302,921.24 is: 418,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,910.82 : 699,489.52 = 302,921.24 : x
  2. Step 2: Convert to fraction form
    506,910.82/699,489.52 = 302,921.24/x
  3. Step 3: Cross multiply
    506,910.82x = 699,489.52 × 302,921.24
  4. Step 4: Simplify right side
    506,910.82x = 211,890,232,765.41
  5. Step 5: Solve for x
    x = 211,890,232,765.41/506,910.82
  6. Step 6: Final answer
    x = 418,002.98

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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.