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Finding the Fourth Proportional to 622,820.54, 853,886.31 and 611,470.01

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Solution

The fourth proportional to 622,820.54, 853,886.31 and 611,470.01 is: 838,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,820.54 : 853,886.31 = 611,470.01 : x
  2. Step 2: Convert to fraction form
    622,820.54/853,886.31 = 611,470.01/x
  3. Step 3: Cross multiply
    622,820.54x = 853,886.31 × 611,470.01
  4. Step 4: Simplify right side
    622,820.54x = 522,125,870,356.27
  5. Step 5: Solve for x
    x = 522,125,870,356.27/622,820.54
  6. Step 6: Final answer
    x = 838,324.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.