Home / 1,286,318.80-1,775,229.06-713,543.50

Finding the Fourth Proportional to 1,286,318.80, 1,775,229.06 and 713,543.50

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Solution

The fourth proportional to 1,286,318.80, 1,775,229.06 and 713,543.50 is: 984,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,318.80 : 1,775,229.06 = 713,543.50 : x
  2. Step 2: Convert to fraction form
    1,286,318.80/1,775,229.06 = 713,543.50/x
  3. Step 3: Cross multiply
    1,286,318.80x = 1,775,229.06 × 713,543.50
  4. Step 4: Simplify right side
    1,286,318.80x = 1,266,703,156,774.11
  5. Step 5: Solve for x
    x = 1,266,703,156,774.11/1,286,318.80
  6. Step 6: Final answer
    x = 984,750.56

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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.