Home / 1,208,365.74-1,667,509.47-664,500.96

Finding the Fourth Proportional to 1,208,365.74, 1,667,509.47 and 664,500.96

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Solution

The fourth proportional to 1,208,365.74, 1,667,509.47 and 664,500.96 is: 916,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,365.74 : 1,667,509.47 = 664,500.96 : x
  2. Step 2: Convert to fraction form
    1,208,365.74/1,667,509.47 = 664,500.96/x
  3. Step 3: Cross multiply
    1,208,365.74x = 1,667,509.47 × 664,500.96
  4. Step 4: Simplify right side
    1,208,365.74x = 1,108,061,643,624.09
  5. Step 5: Solve for x
    x = 1,108,061,643,624.09/1,208,365.74
  6. Step 6: Final answer
    x = 916,991.94

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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.