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Finding the Fourth Proportional to 307,553.40, 461,330.10 and 276,060.60

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Solution

The fourth proportional to 307,553.40, 461,330.10 and 276,060.60 is: 414,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,553.40 : 461,330.10 = 276,060.60 : x
  2. Step 2: Convert to fraction form
    307,553.40/461,330.10 = 276,060.60/x
  3. Step 3: Cross multiply
    307,553.40x = 461,330.10 × 276,060.60
  4. Step 4: Simplify right side
    307,553.40x = 127,355,064,204.06
  5. Step 5: Solve for x
    x = 127,355,064,204.06/307,553.40
  6. Step 6: Final answer
    x = 414,090.90

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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.