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Finding the Fourth Proportional to 622,265.80, 932,016.30 and 511,673.80

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Solution

The fourth proportional to 622,265.80, 932,016.30 and 511,673.80 is: 766,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,265.80 : 932,016.30 = 511,673.80 : x
  2. Step 2: Convert to fraction form
    622,265.80/932,016.30 = 511,673.80/x
  3. Step 3: Cross multiply
    622,265.80x = 932,016.30 × 511,673.80
  4. Step 4: Simplify right side
    622,265.80x = 476,888,321,882.94
  5. Step 5: Solve for x
    x = 476,888,321,882.94/622,265.80
  6. Step 6: Final answer
    x = 766,373.99

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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.