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Finding the Fourth Proportional to 476,714.88, 715,034.88 and 210,481.92

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Solution

The fourth proportional to 476,714.88, 715,034.88 and 210,481.92 is: 315,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,714.88 : 715,034.88 = 210,481.92 : x
  2. Step 2: Convert to fraction form
    476,714.88/715,034.88 = 210,481.92/x
  3. Step 3: Cross multiply
    476,714.88x = 715,034.88 × 210,481.92
  4. Step 4: Simplify right side
    476,714.88x = 150,501,914,409.37
  5. Step 5: Solve for x
    x = 150,501,914,409.37/476,714.88
  6. Step 6: Final answer
    x = 315,706.35

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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.