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Finding the Fourth Proportional to 622,808.37, 859,297.77 and 350,781.21

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Solution

The fourth proportional to 622,808.37, 859,297.77 and 350,781.21 is: 483,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,808.37 : 859,297.77 = 350,781.21 : x
  2. Step 2: Convert to fraction form
    622,808.37/859,297.77 = 350,781.21/x
  3. Step 3: Cross multiply
    622,808.37x = 859,297.77 × 350,781.21
  4. Step 4: Simplify right side
    622,808.37x = 301,425,511,510.90
  5. Step 5: Solve for x
    x = 301,425,511,510.90/622,808.37
  6. Step 6: Final answer
    x = 483,977.94

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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.