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Finding the Fourth Proportional to 364,787.28, 503,160.66 and 316,958.40

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Solution

The fourth proportional to 364,787.28, 503,160.66 and 316,958.40 is: 437,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,787.28 : 503,160.66 = 316,958.40 : x
  2. Step 2: Convert to fraction form
    364,787.28/503,160.66 = 316,958.40/x
  3. Step 3: Cross multiply
    364,787.28x = 503,160.66 × 316,958.40
  4. Step 4: Simplify right side
    364,787.28x = 159,480,997,736.54
  5. Step 5: Solve for x
    x = 159,480,997,736.54/364,787.28
  6. Step 6: Final answer
    x = 437,189.03

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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.