Home / 805,449.60-1,111,524.64-442,896.80

Finding the Fourth Proportional to 805,449.60, 1,111,524.64 and 442,896.80

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Solution

The fourth proportional to 805,449.60, 1,111,524.64 and 442,896.80 is: 611,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,449.60 : 1,111,524.64 = 442,896.80 : x
  2. Step 2: Convert to fraction form
    805,449.60/1,111,524.64 = 442,896.80/x
  3. Step 3: Cross multiply
    805,449.60x = 1,111,524.64 × 442,896.80
  4. Step 4: Simplify right side
    805,449.60x = 492,290,706,177.15
  5. Step 5: Solve for x
    x = 492,290,706,177.15/805,449.60
  6. Step 6: Final answer
    x = 611,199.89

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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.