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Finding the Fourth Proportional to 536,818.40, 804,536.40 and 411,538.40

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Solution

The fourth proportional to 536,818.40, 804,536.40 and 411,538.40 is: 616,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,818.40 : 804,536.40 = 411,538.40 : x
  2. Step 2: Convert to fraction form
    536,818.40/804,536.40 = 411,538.40/x
  3. Step 3: Cross multiply
    536,818.40x = 804,536.40 × 411,538.40
  4. Step 4: Simplify right side
    536,818.40x = 331,097,622,797.76
  5. Step 5: Solve for x
    x = 331,097,622,797.76/536,818.40
  6. Step 6: Final answer
    x = 616,777.71

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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.