Home / 677,139.06-933,807.24-405,163.74

Finding the Fourth Proportional to 677,139.06, 933,807.24 and 405,163.74

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Solution

The fourth proportional to 677,139.06, 933,807.24 and 405,163.74 is: 558,740.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,139.06 : 933,807.24 = 405,163.74 : x
  2. Step 2: Convert to fraction form
    677,139.06/933,807.24 = 405,163.74/x
  3. Step 3: Cross multiply
    677,139.06x = 933,807.24 × 405,163.74
  4. Step 4: Simplify right side
    677,139.06x = 378,344,833,797.48
  5. Step 5: Solve for x
    x = 378,344,833,797.48/677,139.06
  6. Step 6: Final answer
    x = 558,740.23

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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.