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Finding the Fourth Proportional to 368,372.86, 508,353.80 and 207,228.02

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Solution

The fourth proportional to 368,372.86, 508,353.80 and 207,228.02 is: 285,974.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,372.86 : 508,353.80 = 207,228.02 : x
  2. Step 2: Convert to fraction form
    368,372.86/508,353.80 = 207,228.02/x
  3. Step 3: Cross multiply
    368,372.86x = 508,353.80 × 207,228.02
  4. Step 4: Simplify right side
    368,372.86x = 105,345,151,433.48
  5. Step 5: Solve for x
    x = 105,345,151,433.48/368,372.86
  6. Step 6: Final answer
    x = 285,974.25

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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.