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Finding the Fourth Proportional to 541,879.40, 811,944.30 and 341,841.80

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Solution

The fourth proportional to 541,879.40, 811,944.30 and 341,841.80 is: 512,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,879.40 : 811,944.30 = 341,841.80 : x
  2. Step 2: Convert to fraction form
    541,879.40/811,944.30 = 341,841.80/x
  3. Step 3: Cross multiply
    541,879.40x = 811,944.30 × 341,841.80
  4. Step 4: Simplify right side
    541,879.40x = 277,556,501,011.74
  5. Step 5: Solve for x
    x = 277,556,501,011.74/541,879.40
  6. Step 6: Final answer
    x = 512,210.84

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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.