Home / 690,415.82-952,766.16-384,485.53

Finding the Fourth Proportional to 690,415.82, 952,766.16 and 384,485.53

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Solution

The fourth proportional to 690,415.82, 952,766.16 and 384,485.53 is: 530,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,415.82 : 952,766.16 = 384,485.53 : x
  2. Step 2: Convert to fraction form
    690,415.82/952,766.16 = 384,485.53/x
  3. Step 3: Cross multiply
    690,415.82x = 952,766.16 × 384,485.53
  4. Step 4: Simplify right side
    690,415.82x = 366,324,801,993.67
  5. Step 5: Solve for x
    x = 366,324,801,993.67/690,415.82
  6. Step 6: Final answer
    x = 530,585.76

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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.