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Finding the Fourth Proportional to 343,443.84, 515,462.22 and 238,336.62

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Solution

The fourth proportional to 343,443.84, 515,462.22 and 238,336.62 is: 357,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,443.84 : 515,462.22 = 238,336.62 : x
  2. Step 2: Convert to fraction form
    343,443.84/515,462.22 = 238,336.62/x
  3. Step 3: Cross multiply
    343,443.84x = 515,462.22 × 238,336.62
  4. Step 4: Simplify right side
    343,443.84x = 122,853,523,252.50
  5. Step 5: Solve for x
    x = 122,853,523,252.50/343,443.84
  6. Step 6: Final answer
    x = 357,710.66

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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.