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Finding the Fourth Proportional to 519,686.50, 717,167.42 and 293,346.58

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Solution

The fourth proportional to 519,686.50, 717,167.42 and 293,346.58 is: 404,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,686.50 : 717,167.42 = 293,346.58 : x
  2. Step 2: Convert to fraction form
    519,686.50/717,167.42 = 293,346.58/x
  3. Step 3: Cross multiply
    519,686.50x = 717,167.42 × 293,346.58
  4. Step 4: Simplify right side
    519,686.50x = 210,378,609,944.42
  5. Step 5: Solve for x
    x = 210,378,609,944.42/519,686.50
  6. Step 6: Final answer
    x = 404,818.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.