Home / 1,286,679.53-1,775,830.33-713,904.23

Finding the Fourth Proportional to 1,286,679.53, 1,775,830.33 and 713,904.23

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Solution

The fourth proportional to 1,286,679.53, 1,775,830.33 and 713,904.23 is: 985,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,679.53 : 1,775,830.33 = 713,904.23 : x
  2. Step 2: Convert to fraction form
    1,286,679.53/1,775,830.33 = 713,904.23/x
  3. Step 3: Cross multiply
    1,286,679.53x = 1,775,830.33 × 713,904.23
  4. Step 4: Simplify right side
    1,286,679.53x = 1,267,772,789,681.25
  5. Step 5: Solve for x
    x = 1,267,772,789,681.25/1,286,679.53
  6. Step 6: Final answer
    x = 985,305.79

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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.