Home / 1,683,115.77-2,322,667.40-919,174.80

Finding the Fourth Proportional to 1,683,115.77, 2,322,667.40 and 919,174.80

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Solution

The fourth proportional to 1,683,115.77, 2,322,667.40 and 919,174.80 is: 1,268,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,115.77 : 2,322,667.40 = 919,174.80 : x
  2. Step 2: Convert to fraction form
    1,683,115.77/2,322,667.40 = 919,174.80/x
  3. Step 3: Cross multiply
    1,683,115.77x = 2,322,667.40 × 919,174.80
  4. Step 4: Simplify right side
    1,683,115.77x = 2,134,937,338,265.65
  5. Step 5: Solve for x
    x = 2,134,937,338,265.65/1,683,115.77
  6. Step 6: Final answer
    x = 1,268,443.55

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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.