Home / 1,208,700.11-1,667,970.86-664,835.73

Finding the Fourth Proportional to 1,208,700.11, 1,667,970.86 and 664,835.73

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Solution

The fourth proportional to 1,208,700.11, 1,667,970.86 and 664,835.73 is: 917,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,700.11 : 1,667,970.86 = 664,835.73 : x
  2. Step 2: Convert to fraction form
    1,208,700.11/1,667,970.86 = 664,835.73/x
  3. Step 3: Cross multiply
    1,208,700.11x = 1,667,970.86 × 664,835.73
  4. Step 4: Simplify right side
    1,208,700.11x = 1,108,926,621,002.65
  5. Step 5: Solve for x
    x = 1,108,926,621,002.65/1,208,700.11
  6. Step 6: Final answer
    x = 917,453.90

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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.