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Finding the Fourth Proportional to 483,488.20, 725,232.30 and 448,496.20

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Solution

The fourth proportional to 483,488.20, 725,232.30 and 448,496.20 is: 672,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,488.20 : 725,232.30 = 448,496.20 : x
  2. Step 2: Convert to fraction form
    483,488.20/725,232.30 = 448,496.20/x
  3. Step 3: Cross multiply
    483,488.20x = 725,232.30 × 448,496.20
  4. Step 4: Simplify right side
    483,488.20x = 325,263,930,667.26
  5. Step 5: Solve for x
    x = 325,263,930,667.26/483,488.20
  6. Step 6: Final answer
    x = 672,744.30

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Half scale
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Double scale
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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.