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Finding the Fourth Proportional to 443,482.98, 665,397.05 and 177,319.61

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Solution

The fourth proportional to 443,482.98, 665,397.05 and 177,319.61 is: 266,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,482.98 : 665,397.05 = 177,319.61 : x
  2. Step 2: Convert to fraction form
    443,482.98/665,397.05 = 177,319.61/x
  3. Step 3: Cross multiply
    443,482.98x = 665,397.05 × 177,319.61
  4. Step 4: Simplify right side
    443,482.98x = 117,987,946,178.05
  5. Step 5: Solve for x
    x = 117,987,946,178.05/443,482.98
  6. Step 6: Final answer
    x = 266,048.42

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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.