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Finding the Fourth Proportional to 622,781.75, 859,441.44 and 350,852.90

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Solution

The fourth proportional to 622,781.75, 859,441.44 and 350,852.90 is: 484,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,781.75 : 859,441.44 = 350,852.90 : x
  2. Step 2: Convert to fraction form
    622,781.75/859,441.44 = 350,852.90/x
  3. Step 3: Cross multiply
    622,781.75x = 859,441.44 × 350,852.90
  4. Step 4: Simplify right side
    622,781.75x = 301,537,517,306.97
  5. Step 5: Solve for x
    x = 301,537,517,306.97/622,781.75
  6. Step 6: Final answer
    x = 484,178.48

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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.