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Finding the Fourth Proportional to 572,725.96, 790,266.92 and 331,031.08

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Solution

The fourth proportional to 572,725.96, 790,266.92 and 331,031.08 is: 456,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,725.96 : 790,266.92 = 331,031.08 : x
  2. Step 2: Convert to fraction form
    572,725.96/790,266.92 = 331,031.08/x
  3. Step 3: Cross multiply
    572,725.96x = 790,266.92 × 331,031.08
  4. Step 4: Simplify right side
    572,725.96x = 261,602,912,015.87
  5. Step 5: Solve for x
    x = 261,602,912,015.87/572,725.96
  6. Step 6: Final answer
    x = 456,768.04

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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.