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Finding the Fourth Proportional to 536,410.20, 804,615.30 and 528,115.80

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Solution

The fourth proportional to 536,410.20, 804,615.30 and 528,115.80 is: 792,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,410.20 : 804,615.30 = 528,115.80 : x
  2. Step 2: Convert to fraction form
    536,410.20/804,615.30 = 528,115.80/x
  3. Step 3: Cross multiply
    536,410.20x = 804,615.30 × 528,115.80
  4. Step 4: Simplify right side
    536,410.20x = 424,930,052,851.74
  5. Step 5: Solve for x
    x = 424,930,052,851.74/536,410.20
  6. Step 6: Final answer
    x = 792,173.70

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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.