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Finding the Fourth Proportional to 622,093.62, 931,645.74 and 355,044.51

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Solution

The fourth proportional to 622,093.62, 931,645.74 and 355,044.51 is: 531,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,093.62 : 931,645.74 = 355,044.51 : x
  2. Step 2: Convert to fraction form
    622,093.62/931,645.74 = 355,044.51/x
  3. Step 3: Cross multiply
    622,093.62x = 931,645.74 × 355,044.51
  4. Step 4: Simplify right side
    622,093.62x = 330,775,710,076.98
  5. Step 5: Solve for x
    x = 330,775,710,076.98/622,093.62
  6. Step 6: Final answer
    x = 531,713.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.