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Finding the Fourth Proportional to 355,807.80, 534,003.30 and 344,143.80

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Solution

The fourth proportional to 355,807.80, 534,003.30 and 344,143.80 is: 516,497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,807.80 : 534,003.30 = 344,143.80 : x
  2. Step 2: Convert to fraction form
    355,807.80/534,003.30 = 344,143.80/x
  3. Step 3: Cross multiply
    355,807.80x = 534,003.30 × 344,143.80
  4. Step 4: Simplify right side
    355,807.80x = 183,773,924,874.54
  5. Step 5: Solve for x
    x = 183,773,924,874.54/355,807.80
  6. Step 6: Final answer
    x = 516,497.74

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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.