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Finding the Fourth Proportional to 611,525.89, 844,305.42 and 397,276.57

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Solution

The fourth proportional to 611,525.89, 844,305.42 and 397,276.57 is: 548,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,525.89 : 844,305.42 = 397,276.57 : x
  2. Step 2: Convert to fraction form
    611,525.89/844,305.42 = 397,276.57/x
  3. Step 3: Cross multiply
    611,525.89x = 844,305.42 × 397,276.57
  4. Step 4: Simplify right side
    611,525.89x = 335,422,761,290.01
  5. Step 5: Solve for x
    x = 335,422,761,290.01/611,525.89
  6. Step 6: Final answer
    x = 548,501.33

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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.