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Finding the Fourth Proportional to 572,714.33, 790,299.69 and 331,012.56

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Solution

The fourth proportional to 572,714.33, 790,299.69 and 331,012.56 is: 456,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,714.33 : 790,299.69 = 331,012.56 : x
  2. Step 2: Convert to fraction form
    572,714.33/790,299.69 = 331,012.56/x
  3. Step 3: Cross multiply
    572,714.33x = 790,299.69 × 331,012.56
  4. Step 4: Simplify right side
    572,714.33x = 261,599,123,554.11
  5. Step 5: Solve for x
    x = 261,599,123,554.11/572,714.33
  6. Step 6: Final answer
    x = 456,770.69

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1.5x scale

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.