Home / 917,344.88-1,265,967.92-509,453.51

Finding the Fourth Proportional to 917,344.88, 1,265,967.92 and 509,453.51

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Solution

The fourth proportional to 917,344.88, 1,265,967.92 and 509,453.51 is: 703,063.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,344.88 : 1,265,967.92 = 509,453.51 : x
  2. Step 2: Convert to fraction form
    917,344.88/1,265,967.92 = 509,453.51/x
  3. Step 3: Cross multiply
    917,344.88x = 1,265,967.92 × 509,453.51
  4. Step 4: Simplify right side
    917,344.88x = 644,951,800,391.40
  5. Step 5: Solve for x
    x = 644,951,800,391.40/917,344.88
  6. Step 6: Final answer
    x = 703,063.61

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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.