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Finding the Fourth Proportional to 647,938, 972,202.26 and 332,616.52

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Solution

The fourth proportional to 647,938, 972,202.26 and 332,616.52 is: 499,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,938 : 972,202.26 = 332,616.52 : x
  2. Step 2: Convert to fraction form
    647,938/972,202.26 = 332,616.52/x
  3. Step 3: Cross multiply
    647,938x = 972,202.26 × 332,616.52
  4. Step 4: Simplify right side
    647,938x = 323,370,532,457.34
  5. Step 5: Solve for x
    x = 323,370,532,457.34/647,938
  6. Step 6: Final answer
    x = 499,076.35

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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.