Home / 1,207,270.62-1,666,046.72-663,406.55

Finding the Fourth Proportional to 1,207,270.62, 1,666,046.72 and 663,406.55

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Solution

The fourth proportional to 1,207,270.62, 1,666,046.72 and 663,406.55 is: 915,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,270.62 : 1,666,046.72 = 663,406.55 : x
  2. Step 2: Convert to fraction form
    1,207,270.62/1,666,046.72 = 663,406.55/x
  3. Step 3: Cross multiply
    1,207,270.62x = 1,666,046.72 × 663,406.55
  4. Step 4: Simplify right side
    1,207,270.62x = 1,105,266,299,171.87
  5. Step 5: Solve for x
    x = 1,105,266,299,171.87/1,207,270.62
  6. Step 6: Final answer
    x = 915,508.33

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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.