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Finding the Fourth Proportional to 654,172.26, 902,783.31 and 367,691.46

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Solution

The fourth proportional to 654,172.26, 902,783.31 and 367,691.46 is: 507,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,172.26 : 902,783.31 = 367,691.46 : x
  2. Step 2: Convert to fraction form
    654,172.26/902,783.31 = 367,691.46/x
  3. Step 3: Cross multiply
    654,172.26x = 902,783.31 × 367,691.46
  4. Step 4: Simplify right side
    654,172.26x = 331,945,713,317.53
  5. Step 5: Solve for x
    x = 331,945,713,317.53/654,172.26
  6. Step 6: Final answer
    x = 507,428.60

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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.