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Finding the Fourth Proportional to 526,310.82, 726,254.45 and 388,563.06

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Solution

The fourth proportional to 526,310.82, 726,254.45 and 388,563.06 is: 536,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,310.82 : 726,254.45 = 388,563.06 : x
  2. Step 2: Convert to fraction form
    526,310.82/726,254.45 = 388,563.06/x
  3. Step 3: Cross multiply
    526,310.82x = 726,254.45 × 388,563.06
  4. Step 4: Simplify right side
    526,310.82x = 282,195,649,487.80
  5. Step 5: Solve for x
    x = 282,195,649,487.80/526,310.82
  6. Step 6: Final answer
    x = 536,176.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.