Home / 1,207,553.09-1,666,426.91-663,744.61

Finding the Fourth Proportional to 1,207,553.09, 1,666,426.91 and 663,744.61

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Solution

The fourth proportional to 1,207,553.09, 1,666,426.91 and 663,744.61 is: 915,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,553.09 : 1,666,426.91 = 663,744.61 : x
  2. Step 2: Convert to fraction form
    1,207,553.09/1,666,426.91 = 663,744.61/x
  3. Step 3: Cross multiply
    1,207,553.09x = 1,666,426.91 × 663,744.61
  4. Step 4: Simplify right side
    1,207,553.09x = 1,106,081,871,986.66
  5. Step 5: Solve for x
    x = 1,106,081,871,986.66/1,207,553.09
  6. Step 6: Final answer
    x = 915,969.56

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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.