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Finding the Fourth Proportional to 535,542.30, 803,313.45 and 219,836.70

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Solution

The fourth proportional to 535,542.30, 803,313.45 and 219,836.70 is: 329,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,542.30 : 803,313.45 = 219,836.70 : x
  2. Step 2: Convert to fraction form
    535,542.30/803,313.45 = 219,836.70/x
  3. Step 3: Cross multiply
    535,542.30x = 803,313.45 × 219,836.70
  4. Step 4: Simplify right side
    535,542.30x = 176,597,777,913.62
  5. Step 5: Solve for x
    x = 176,597,777,913.62/535,542.30
  6. Step 6: Final answer
    x = 329,755.05

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Similar ratio
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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.