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Finding the Fourth Proportional to 476,857.08, 715,469.04 and 210,429.36

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Solution

The fourth proportional to 476,857.08, 715,469.04 and 210,429.36 is: 315,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,857.08 : 715,469.04 = 210,429.36 : x
  2. Step 2: Convert to fraction form
    476,857.08/715,469.04 = 210,429.36/x
  3. Step 3: Cross multiply
    476,857.08x = 715,469.04 × 210,429.36
  4. Step 4: Simplify right side
    476,857.08x = 150,555,692,187.01
  5. Step 5: Solve for x
    x = 150,555,692,187.01/476,857.08
  6. Step 6: Final answer
    x = 315,724.98

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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.