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Finding the Fourth Proportional to 483,752.21, 725,628.44 and 142,195.65

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Solution

The fourth proportional to 483,752.21, 725,628.44 and 142,195.65 is: 213,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,752.21 : 725,628.44 = 142,195.65 : x
  2. Step 2: Convert to fraction form
    483,752.21/725,628.44 = 142,195.65/x
  3. Step 3: Cross multiply
    483,752.21x = 725,628.44 × 142,195.65
  4. Step 4: Simplify right side
    483,752.21x = 103,181,207,359.50
  5. Step 5: Solve for x
    x = 103,181,207,359.50/483,752.21
  6. Step 6: Final answer
    x = 213,293.51

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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.