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Finding the Fourth Proportional to 443,731.30, 665,596.95 and 364,999.30

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Solution

The fourth proportional to 443,731.30, 665,596.95 and 364,999.30 is: 547,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,731.30 : 665,596.95 = 364,999.30 : x
  2. Step 2: Convert to fraction form
    443,731.30/665,596.95 = 364,999.30/x
  3. Step 3: Cross multiply
    443,731.30x = 665,596.95 × 364,999.30
  4. Step 4: Simplify right side
    443,731.30x = 242,942,420,832.14
  5. Step 5: Solve for x
    x = 242,942,420,832.14/443,731.30
  6. Step 6: Final answer
    x = 547,498.95

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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.