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Finding the Fourth Proportional to 336,393.42, 503,559.81 and 217,828.86

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Solution

The fourth proportional to 336,393.42, 503,559.81 and 217,828.86 is: 326,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,393.42 : 503,559.81 = 217,828.86 : x
  2. Step 2: Convert to fraction form
    336,393.42/503,559.81 = 217,828.86/x
  3. Step 3: Cross multiply
    336,393.42x = 503,559.81 × 217,828.86
  4. Step 4: Simplify right side
    336,393.42x = 109,689,859,354.12
  5. Step 5: Solve for x
    x = 109,689,859,354.12/336,393.42
  6. Step 6: Final answer
    x = 326,076.11

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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.