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Finding the Fourth Proportional to 484,309.07, 726,627.08 and 214,399.98

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Solution

The fourth proportional to 484,309.07, 726,627.08 and 214,399.98 is: 321,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,309.07 : 726,627.08 = 214,399.98 : x
  2. Step 2: Convert to fraction form
    484,309.07/726,627.08 = 214,399.98/x
  3. Step 3: Cross multiply
    484,309.07x = 726,627.08 × 214,399.98
  4. Step 4: Simplify right side
    484,309.07x = 155,788,831,955.46
  5. Step 5: Solve for x
    x = 155,788,831,955.46/484,309.07
  6. Step 6: Final answer
    x = 321,672.34

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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.