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Finding the Fourth Proportional to 452,650.94, 679,123.80 and 215,963

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Solution

The fourth proportional to 452,650.94, 679,123.80 and 215,963 is: 324,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,650.94 : 679,123.80 = 215,963 : x
  2. Step 2: Convert to fraction form
    452,650.94/679,123.80 = 215,963/x
  3. Step 3: Cross multiply
    452,650.94x = 679,123.80 × 215,963
  4. Step 4: Simplify right side
    452,650.94x = 146,665,613,219.40
  5. Step 5: Solve for x
    x = 146,665,613,219.40/452,650.94
  6. Step 6: Final answer
    x = 324,014.82

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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.