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Finding the Fourth Proportional to 679,993.56, 938,393.27 and 374,093.24

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Solution

The fourth proportional to 679,993.56, 938,393.27 and 374,093.24 is: 516,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,993.56 : 938,393.27 = 374,093.24 : x
  2. Step 2: Convert to fraction form
    679,993.56/938,393.27 = 374,093.24/x
  3. Step 3: Cross multiply
    679,993.56x = 938,393.27 × 374,093.24
  4. Step 4: Simplify right side
    679,993.56x = 351,046,572,206.06
  5. Step 5: Solve for x
    x = 351,046,572,206.06/679,993.56
  6. Step 6: Final answer
    x = 516,249.85

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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.