Home / 1,153,091.20-1,591,268.94-643,811.80

Finding the Fourth Proportional to 1,153,091.20, 1,591,268.94 and 643,811.80

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Solution

The fourth proportional to 1,153,091.20, 1,591,268.94 and 643,811.80 is: 888,462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,091.20 : 1,591,268.94 = 643,811.80 : x
  2. Step 2: Convert to fraction form
    1,153,091.20/1,591,268.94 = 643,811.80/x
  3. Step 3: Cross multiply
    1,153,091.20x = 1,591,268.94 × 643,811.80
  4. Step 4: Simplify right side
    1,153,091.20x = 1,024,477,720,545.49
  5. Step 5: Solve for x
    x = 1,024,477,720,545.49/1,153,091.20
  6. Step 6: Final answer
    x = 888,462.01

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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.