Home / 801,811.91-1,106,500.80-439,248.93

Finding the Fourth Proportional to 801,811.91, 1,106,500.80 and 439,248.93

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Solution

The fourth proportional to 801,811.91, 1,106,500.80 and 439,248.93 is: 606,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,811.91 : 1,106,500.80 = 439,248.93 : x
  2. Step 2: Convert to fraction form
    801,811.91/1,106,500.80 = 439,248.93/x
  3. Step 3: Cross multiply
    801,811.91x = 1,106,500.80 × 439,248.93
  4. Step 4: Simplify right side
    801,811.91x = 486,029,289,941.95
  5. Step 5: Solve for x
    x = 486,029,289,941.95/801,811.91
  6. Step 6: Final answer
    x = 606,163.72

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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.