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Finding the Fourth Proportional to 476,694.28, 715,129.26 and 156,864.04

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Solution

The fourth proportional to 476,694.28, 715,129.26 and 156,864.04 is: 235,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,694.28 : 715,129.26 = 156,864.04 : x
  2. Step 2: Convert to fraction form
    476,694.28/715,129.26 = 156,864.04/x
  3. Step 3: Cross multiply
    476,694.28x = 715,129.26 × 156,864.04
  4. Step 4: Simplify right side
    476,694.28x = 112,178,064,845.81
  5. Step 5: Solve for x
    x = 112,178,064,845.81/476,694.28
  6. Step 6: Final answer
    x = 235,324.97

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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.