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Finding the Fourth Proportional to 573,205.70, 859,808.55 and 518,093.30

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Solution

The fourth proportional to 573,205.70, 859,808.55 and 518,093.30 is: 777,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,205.70 : 859,808.55 = 518,093.30 : x
  2. Step 2: Convert to fraction form
    573,205.70/859,808.55 = 518,093.30/x
  3. Step 3: Cross multiply
    573,205.70x = 859,808.55 × 518,093.30
  4. Step 4: Simplify right side
    573,205.70x = 445,461,049,037.72
  5. Step 5: Solve for x
    x = 445,461,049,037.72/573,205.70
  6. Step 6: Final answer
    x = 777,139.95

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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.