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Finding the Fourth Proportional to 536,136.55, 804,537.20 and 311,602.72

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Solution

The fourth proportional to 536,136.55, 804,537.20 and 311,602.72 is: 467,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,136.55 : 804,537.20 = 311,602.72 : x
  2. Step 2: Convert to fraction form
    536,136.55/804,537.20 = 311,602.72/x
  3. Step 3: Cross multiply
    536,136.55x = 804,537.20 × 311,602.72
  4. Step 4: Simplify right side
    536,136.55x = 250,695,979,861.18
  5. Step 5: Solve for x
    x = 250,695,979,861.18/536,136.55
  6. Step 6: Final answer
    x = 467,597.26

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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.