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Finding the Fourth Proportional to 557,136.80, 834,322.80 and 446,544.80

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Solution

The fourth proportional to 557,136.80, 834,322.80 and 446,544.80 is: 668,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,136.80 : 834,322.80 = 446,544.80 : x
  2. Step 2: Convert to fraction form
    557,136.80/834,322.80 = 446,544.80/x
  3. Step 3: Cross multiply
    557,136.80x = 834,322.80 × 446,544.80
  4. Step 4: Simplify right side
    557,136.80x = 372,562,507,861.44
  5. Step 5: Solve for x
    x = 372,562,507,861.44/557,136.80
  6. Step 6: Final answer
    x = 668,709.21

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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.