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Finding the Fourth Proportional to 501,434.90, 751,445.16 and 276,896.42

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Solution

The fourth proportional to 501,434.90, 751,445.16 and 276,896.42 is: 414,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,434.90 : 751,445.16 = 276,896.42 : x
  2. Step 2: Convert to fraction form
    501,434.90/751,445.16 = 276,896.42/x
  3. Step 3: Cross multiply
    501,434.90x = 751,445.16 × 276,896.42
  4. Step 4: Simplify right side
    501,434.90x = 208,072,474,630.33
  5. Step 5: Solve for x
    x = 208,072,474,630.33/501,434.90
  6. Step 6: Final answer
    x = 414,954.11

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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.