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Finding the Fourth Proportional to 622,057.29, 933,127.97 and 211,559.45

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Solution

The fourth proportional to 622,057.29, 933,127.97 and 211,559.45 is: 317,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,057.29 : 933,127.97 = 211,559.45 : x
  2. Step 2: Convert to fraction form
    622,057.29/933,127.97 = 211,559.45/x
  3. Step 3: Cross multiply
    622,057.29x = 933,127.97 × 211,559.45
  4. Step 4: Simplify right side
    622,057.29x = 197,412,036,174.41
  5. Step 5: Solve for x
    x = 197,412,036,174.41/622,057.29
  6. Step 6: Final answer
    x = 317,353.46

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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.