Home / 664,029.95-916,334.25-392,185.85

Finding the Fourth Proportional to 664,029.95, 916,334.25 and 392,185.85

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Solution

The fourth proportional to 664,029.95, 916,334.25 and 392,185.85 is: 541,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,029.95 : 916,334.25 = 392,185.85 : x
  2. Step 2: Convert to fraction form
    664,029.95/916,334.25 = 392,185.85/x
  3. Step 3: Cross multiply
    664,029.95x = 916,334.25 × 392,185.85
  4. Step 4: Simplify right side
    664,029.95x = 359,373,322,138.69
  5. Step 5: Solve for x
    x = 359,373,322,138.69/664,029.95
  6. Step 6: Final answer
    x = 541,200.48

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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.