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Finding the Fourth Proportional to 633,726.66, 874,563.12 and 347,264.94

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Solution

The fourth proportional to 633,726.66, 874,563.12 and 347,264.94 is: 479,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,726.66 : 874,563.12 = 347,264.94 : x
  2. Step 2: Convert to fraction form
    633,726.66/874,563.12 = 347,264.94/x
  3. Step 3: Cross multiply
    633,726.66x = 874,563.12 × 347,264.94
  4. Step 4: Simplify right side
    633,726.66x = 303,705,109,393.01
  5. Step 5: Solve for x
    x = 303,705,109,393.01/633,726.66
  6. Step 6: Final answer
    x = 479,236.76

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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.