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Finding the Fourth Proportional to 530,750.80, 796,454.25 and 215,210.44

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Solution

The fourth proportional to 530,750.80, 796,454.25 and 215,210.44 is: 322,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,750.80 : 796,454.25 = 215,210.44 : x
  2. Step 2: Convert to fraction form
    530,750.80/796,454.25 = 215,210.44/x
  3. Step 3: Cross multiply
    530,750.80x = 796,454.25 × 215,210.44
  4. Step 4: Simplify right side
    530,750.80x = 171,405,269,582.37
  5. Step 5: Solve for x
    x = 171,405,269,582.37/530,750.80
  6. Step 6: Final answer
    x = 322,948.68

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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.