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Finding the Fourth Proportional to 936,722, 1,292,323.56 and 614,609.84

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Solution

The fourth proportional to 936,722, 1,292,323.56 and 614,609.84 is: 847,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,722 : 1,292,323.56 = 614,609.84 : x
  2. Step 2: Convert to fraction form
    936,722/1,292,323.56 = 614,609.84/x
  3. Step 3: Cross multiply
    936,722x = 1,292,323.56 × 614,609.84
  4. Step 4: Simplify right side
    936,722x = 794,274,776,439.83
  5. Step 5: Solve for x
    x = 794,274,776,439.83/936,722
  6. Step 6: Final answer
    x = 847,930.10

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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.