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Finding the Fourth Proportional to 573,181.70, 859,772.55 and 518,069.30

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Solution

The fourth proportional to 573,181.70, 859,772.55 and 518,069.30 is: 777,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,181.70 : 859,772.55 = 518,069.30 : x
  2. Step 2: Convert to fraction form
    573,181.70/859,772.55 = 518,069.30/x
  3. Step 3: Cross multiply
    573,181.70x = 859,772.55 × 518,069.30
  4. Step 4: Simplify right side
    573,181.70x = 445,421,763,137.72
  5. Step 5: Solve for x
    x = 445,421,763,137.72/573,181.70
  6. Step 6: Final answer
    x = 777,103.95

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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.