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Finding the Fourth Proportional to 536,837.40, 804,564.90 and 411,557.40

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Solution

The fourth proportional to 536,837.40, 804,564.90 and 411,557.40 is: 616,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,837.40 : 804,564.90 = 411,557.40 : x
  2. Step 2: Convert to fraction form
    536,837.40/804,564.90 = 411,557.40/x
  3. Step 3: Cross multiply
    536,837.40x = 804,564.90 × 411,557.40
  4. Step 4: Simplify right side
    536,837.40x = 331,124,638,375.26
  5. Step 5: Solve for x
    x = 331,124,638,375.26/536,837.40
  6. Step 6: Final answer
    x = 616,806.20

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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.