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Finding the Fourth Proportional to 590,900.56, 815,442.08 and 349,270.28

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Solution

The fourth proportional to 590,900.56, 815,442.08 and 349,270.28 is: 481,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,900.56 : 815,442.08 = 349,270.28 : x
  2. Step 2: Convert to fraction form
    590,900.56/815,442.08 = 349,270.28/x
  3. Step 3: Cross multiply
    590,900.56x = 815,442.08 × 349,270.28
  4. Step 4: Simplify right side
    590,900.56x = 284,809,683,605.38
  5. Step 5: Solve for x
    x = 284,809,683,605.38/590,900.56
  6. Step 6: Final answer
    x = 481,992.58

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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.