Home / 1,207,965.81-1,666,950.33-664,097.66

Finding the Fourth Proportional to 1,207,965.81, 1,666,950.33 and 664,097.66

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Solution

The fourth proportional to 1,207,965.81, 1,666,950.33 and 664,097.66 is: 916,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,965.81 : 1,666,950.33 = 664,097.66 : x
  2. Step 2: Convert to fraction form
    1,207,965.81/1,666,950.33 = 664,097.66/x
  3. Step 3: Cross multiply
    1,207,965.81x = 1,666,950.33 × 664,097.66
  4. Step 4: Simplify right side
    1,207,965.81x = 1,107,017,813,489.23
  5. Step 5: Solve for x
    x = 1,107,017,813,489.23/1,207,965.81
  6. Step 6: Final answer
    x = 916,431.41

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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.