Home / 800,811.66-1,105,120.11-438,235.53

Finding the Fourth Proportional to 800,811.66, 1,105,120.11 and 438,235.53

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Solution

The fourth proportional to 800,811.66, 1,105,120.11 and 438,235.53 is: 604,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,811.66 : 1,105,120.11 = 438,235.53 : x
  2. Step 2: Convert to fraction form
    800,811.66/1,105,120.11 = 438,235.53/x
  3. Step 3: Cross multiply
    800,811.66x = 1,105,120.11 × 438,235.53
  4. Step 4: Simplify right side
    800,811.66x = 484,302,897,119.51
  5. Step 5: Solve for x
    x = 484,302,897,119.51/800,811.66
  6. Step 6: Final answer
    x = 604,765.04

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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.