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Finding the Fourth Proportional to 404,732, 558,010.95 and 331,866.43

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Solution

The fourth proportional to 404,732, 558,010.95 and 331,866.43 is: 457,549.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,732 : 558,010.95 = 331,866.43 : x
  2. Step 2: Convert to fraction form
    404,732/558,010.95 = 331,866.43/x
  3. Step 3: Cross multiply
    404,732x = 558,010.95 × 331,866.43
  4. Step 4: Simplify right side
    404,732x = 185,185,101,877.41
  5. Step 5: Solve for x
    x = 185,185,101,877.41/404,732
  6. Step 6: Final answer
    x = 457,549.94

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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.