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Finding the Fourth Proportional to 443,614.74, 665,895.69 and 191,020.29

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Solution

The fourth proportional to 443,614.74, 665,895.69 and 191,020.29 is: 286,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,614.74 : 665,895.69 = 191,020.29 : x
  2. Step 2: Convert to fraction form
    443,614.74/665,895.69 = 191,020.29/x
  3. Step 3: Cross multiply
    443,614.74x = 665,895.69 × 191,020.29
  4. Step 4: Simplify right side
    443,614.74x = 127,199,587,813.55
  5. Step 5: Solve for x
    x = 127,199,587,813.55/443,614.74
  6. Step 6: Final answer
    x = 286,734.36

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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.