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Finding the Fourth Proportional to 483,690.60, 725,535.90 and 306,397.80

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Solution

The fourth proportional to 483,690.60, 725,535.90 and 306,397.80 is: 459,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,690.60 : 725,535.90 = 306,397.80 : x
  2. Step 2: Convert to fraction form
    483,690.60/725,535.90 = 306,397.80/x
  3. Step 3: Cross multiply
    483,690.60x = 725,535.90 × 306,397.80
  4. Step 4: Simplify right side
    483,690.60x = 222,302,603,581.02
  5. Step 5: Solve for x
    x = 222,302,603,581.02/483,690.60
  6. Step 6: Final answer
    x = 459,596.70

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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.