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Finding the Fourth Proportional to 506,982.60, 699,698.52 and 289,244.88

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Solution

The fourth proportional to 506,982.60, 699,698.52 and 289,244.88 is: 399,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,982.60 : 699,698.52 = 289,244.88 : x
  2. Step 2: Convert to fraction form
    506,982.60/699,698.52 = 289,244.88/x
  3. Step 3: Cross multiply
    506,982.60x = 699,698.52 × 289,244.88
  4. Step 4: Simplify right side
    506,982.60x = 202,384,214,453.58
  5. Step 5: Solve for x
    x = 202,384,214,453.58/506,982.60
  6. Step 6: Final answer
    x = 399,193.61

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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.