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Finding the Fourth Proportional to 483,364.80, 724,701.60 and 216,907.20

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Solution

The fourth proportional to 483,364.80, 724,701.60 and 216,907.20 is: 325,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,364.80 : 724,701.60 = 216,907.20 : x
  2. Step 2: Convert to fraction form
    483,364.80/724,701.60 = 216,907.20/x
  3. Step 3: Cross multiply
    483,364.80x = 724,701.60 × 216,907.20
  4. Step 4: Simplify right side
    483,364.80x = 157,192,994,891.52
  5. Step 5: Solve for x
    x = 157,192,994,891.52/483,364.80
  6. Step 6: Final answer
    x = 325,205.71

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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.