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Finding the Fourth Proportional to 460,625.80, 635,372.84 and 317,136.72

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Solution

The fourth proportional to 460,625.80, 635,372.84 and 317,136.72 is: 437,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,625.80 : 635,372.84 = 317,136.72 : x
  2. Step 2: Convert to fraction form
    460,625.80/635,372.84 = 317,136.72/x
  3. Step 3: Cross multiply
    460,625.80x = 635,372.84 × 317,136.72
  4. Step 4: Simplify right side
    460,625.80x = 201,500,058,454.69
  5. Step 5: Solve for x
    x = 201,500,058,454.69/460,625.80
  6. Step 6: Final answer
    x = 437,448.49

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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.