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Finding the Fourth Proportional to 722,725.26, 997,327.26 and 396,036.33

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Solution

The fourth proportional to 722,725.26, 997,327.26 and 396,036.33 is: 546,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,725.26 : 997,327.26 = 396,036.33 : x
  2. Step 2: Convert to fraction form
    722,725.26/997,327.26 = 396,036.33/x
  3. Step 3: Cross multiply
    722,725.26x = 997,327.26 × 396,036.33
  4. Step 4: Simplify right side
    722,725.26x = 394,977,827,859.36
  5. Step 5: Solve for x
    x = 394,977,827,859.36/722,725.26
  6. Step 6: Final answer
    x = 546,511.72

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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.