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Finding the Fourth Proportional to 483,813.40, 725,633.70 and 306,002.20

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Solution

The fourth proportional to 483,813.40, 725,633.70 and 306,002.20 is: 458,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,813.40 : 725,633.70 = 306,002.20 : x
  2. Step 2: Convert to fraction form
    483,813.40/725,633.70 = 306,002.20/x
  3. Step 3: Cross multiply
    483,813.40x = 725,633.70 × 306,002.20
  4. Step 4: Simplify right side
    483,813.40x = 222,045,508,594.14
  5. Step 5: Solve for x
    x = 222,045,508,594.14/483,813.40
  6. Step 6: Final answer
    x = 458,948.65

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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.