Home / 351,921.90-527,883.93-85,682.46

Finding the Fourth Proportional to 351,921.90, 527,883.93 and 85,682.46

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Solution

The fourth proportional to 351,921.90, 527,883.93 and 85,682.46 is: 128,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,921.90 : 527,883.93 = 85,682.46 : x
  2. Step 2: Convert to fraction form
    351,921.90/527,883.93 = 85,682.46/x
  3. Step 3: Cross multiply
    351,921.90x = 527,883.93 × 85,682.46
  4. Step 4: Simplify right side
    351,921.90x = 45,230,393,716.87
  5. Step 5: Solve for x
    x = 45,230,393,716.87/351,921.90
  6. Step 6: Final answer
    x = 128,523.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.