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Finding the Fourth Proportional to 580,615.80, 870,632.10 and 264,715.80

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Solution

The fourth proportional to 580,615.80, 870,632.10 and 264,715.80 is: 396,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,615.80 : 870,632.10 = 264,715.80 : x
  2. Step 2: Convert to fraction form
    580,615.80/870,632.10 = 264,715.80/x
  3. Step 3: Cross multiply
    580,615.80x = 870,632.10 × 264,715.80
  4. Step 4: Simplify right side
    580,615.80x = 230,470,072,857.18
  5. Step 5: Solve for x
    x = 230,470,072,857.18/580,615.80
  6. Step 6: Final answer
    x = 396,940.75

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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.