Home / 683,138.40-942,658.26-396,604.92

Finding the Fourth Proportional to 683,138.40, 942,658.26 and 396,604.92

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Solution

The fourth proportional to 683,138.40, 942,658.26 and 396,604.92 is: 547,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,138.40 : 942,658.26 = 396,604.92 : x
  2. Step 2: Convert to fraction form
    683,138.40/942,658.26 = 396,604.92/x
  3. Step 3: Cross multiply
    683,138.40x = 942,658.26 × 396,604.92
  4. Step 4: Simplify right side
    683,138.40x = 373,862,903,794.64
  5. Step 5: Solve for x
    x = 373,862,903,794.64/683,138.40
  6. Step 6: Final answer
    x = 547,272.56

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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.