Home / 1,208,655.56-1,667,948-664,847.07

Finding the Fourth Proportional to 1,208,655.56, 1,667,948 and 664,847.07

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Solution

The fourth proportional to 1,208,655.56, 1,667,948 and 664,847.07 is: 917,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,655.56 : 1,667,948 = 664,847.07 : x
  2. Step 2: Convert to fraction form
    1,208,655.56/1,667,948 = 664,847.07/x
  3. Step 3: Cross multiply
    1,208,655.56x = 1,667,948 × 664,847.07
  4. Step 4: Simplify right side
    1,208,655.56x = 1,108,930,340,712.36
  5. Step 5: Solve for x
    x = 1,108,930,340,712.36/1,208,655.56
  6. Step 6: Final answer
    x = 917,490.79

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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.