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Finding the Fourth Proportional to 580,640.35, 870,621.54 and 225,239.08

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Solution

The fourth proportional to 580,640.35, 870,621.54 and 225,239.08 is: 337,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,640.35 : 870,621.54 = 225,239.08 : x
  2. Step 2: Convert to fraction form
    580,640.35/870,621.54 = 225,239.08/x
  3. Step 3: Cross multiply
    580,640.35x = 870,621.54 × 225,239.08
  4. Step 4: Simplify right side
    580,640.35x = 196,097,994,697.78
  5. Step 5: Solve for x
    x = 196,097,994,697.78/580,640.35
  6. Step 6: Final answer
    x = 337,727.12

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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.