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Finding the Fourth Proportional to 368,376.76, 508,354.86 and 207,231.76

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Solution

The fourth proportional to 368,376.76, 508,354.86 and 207,231.76 is: 285,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,376.76 : 508,354.86 = 207,231.76 : x
  2. Step 2: Convert to fraction form
    368,376.76/508,354.86 = 207,231.76/x
  3. Step 3: Cross multiply
    368,376.76x = 508,354.86 × 207,231.76
  4. Step 4: Simplify right side
    368,376.76x = 105,347,272,342.35
  5. Step 5: Solve for x
    x = 105,347,272,342.35/368,376.76
  6. Step 6: Final answer
    x = 285,976.98

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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.