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Finding the Fourth Proportional to 443,669.80, 665,601.90 and 177,363.40

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Solution

The fourth proportional to 443,669.80, 665,601.90 and 177,363.40 is: 266,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,669.80 : 665,601.90 = 177,363.40 : x
  2. Step 2: Convert to fraction form
    443,669.80/665,601.90 = 177,363.40/x
  3. Step 3: Cross multiply
    443,669.80x = 665,601.90 × 177,363.40
  4. Step 4: Simplify right side
    443,669.80x = 118,053,416,030.46
  5. Step 5: Solve for x
    x = 118,053,416,030.46/443,669.80
  6. Step 6: Final answer
    x = 266,083.96

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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.