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Finding the Fourth Proportional to 572,754.90, 790,355.48 and 331,053.12

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Solution

The fourth proportional to 572,754.90, 790,355.48 and 331,053.12 is: 456,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,754.90 : 790,355.48 = 331,053.12 : x
  2. Step 2: Convert to fraction form
    572,754.90/790,355.48 = 331,053.12/x
  3. Step 3: Cross multiply
    572,754.90x = 790,355.48 × 331,053.12
  4. Step 4: Simplify right side
    572,754.90x = 261,649,645,907.83
  5. Step 5: Solve for x
    x = 261,649,645,907.83/572,754.90
  6. Step 6: Final answer
    x = 456,826.55

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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.