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Finding the Fourth Proportional to 443,606.88, 665,136.72 and 191,048.16

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Solution

The fourth proportional to 443,606.88, 665,136.72 and 191,048.16 is: 286,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,606.88 : 665,136.72 = 191,048.16 : x
  2. Step 2: Convert to fraction form
    443,606.88/665,136.72 = 191,048.16/x
  3. Step 3: Cross multiply
    443,606.88x = 665,136.72 × 191,048.16
  4. Step 4: Simplify right side
    443,606.88x = 127,073,146,504.44
  5. Step 5: Solve for x
    x = 127,073,146,504.44/443,606.88
  6. Step 6: Final answer
    x = 286,454.41

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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.