Home / 1,208,405.15-1,667,641.89-664,583.03

Finding the Fourth Proportional to 1,208,405.15, 1,667,641.89 and 664,583.03

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Solution

The fourth proportional to 1,208,405.15, 1,667,641.89 and 664,583.03 is: 917,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,405.15 : 1,667,641.89 = 664,583.03 : x
  2. Step 2: Convert to fraction form
    1,208,405.15/1,667,641.89 = 664,583.03/x
  3. Step 3: Cross multiply
    1,208,405.15x = 1,667,641.89 × 664,583.03
  4. Step 4: Simplify right side
    1,208,405.15x = 1,108,286,494,365.10
  5. Step 5: Solve for x
    x = 1,108,286,494,365.10/1,208,405.15
  6. Step 6: Final answer
    x = 917,148.11

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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.