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Finding the Fourth Proportional to 571,418.37, 857,270.33 and 403,266.94

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Solution

The fourth proportional to 571,418.37, 857,270.33 and 403,266.94 is: 605,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,418.37 : 857,270.33 = 403,266.94 : x
  2. Step 2: Convert to fraction form
    571,418.37/857,270.33 = 403,266.94/x
  3. Step 3: Cross multiply
    571,418.37x = 857,270.33 × 403,266.94
  4. Step 4: Simplify right side
    571,418.37x = 345,708,782,731.89
  5. Step 5: Solve for x
    x = 345,708,782,731.89/571,418.37
  6. Step 6: Final answer
    x = 605,001.17

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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.