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Finding the Fourth Proportional to 443,740.80, 665,611.20 and 365,008.80

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Solution

The fourth proportional to 443,740.80, 665,611.20 and 365,008.80 is: 547,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,740.80 : 665,611.20 = 365,008.80 : x
  2. Step 2: Convert to fraction form
    443,740.80/665,611.20 = 365,008.80/x
  3. Step 3: Cross multiply
    443,740.80x = 665,611.20 × 365,008.80
  4. Step 4: Simplify right side
    443,740.80x = 242,953,945,378.56
  5. Step 5: Solve for x
    x = 242,953,945,378.56/443,740.80
  6. Step 6: Final answer
    x = 547,513.20

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1.5x scale

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.