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Finding the Fourth Proportional to 571,366.68, 857,231.10 and 343,911.39

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Solution

The fourth proportional to 571,366.68, 857,231.10 and 343,911.39 is: 515,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,366.68 : 857,231.10 = 343,911.39 : x
  2. Step 2: Convert to fraction form
    571,366.68/857,231.10 = 343,911.39/x
  3. Step 3: Cross multiply
    571,366.68x = 857,231.10 × 343,911.39
  4. Step 4: Simplify right side
    571,366.68x = 294,811,539,152.23
  5. Step 5: Solve for x
    x = 294,811,539,152.23/571,366.68
  6. Step 6: Final answer
    x = 515,976.08

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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.