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Finding the Fourth Proportional to 618,272.77, 851,759.81 and 581,071.90

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Solution

The fourth proportional to 618,272.77, 851,759.81 and 581,071.90 is: 800,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,272.77 : 851,759.81 = 581,071.90 : x
  2. Step 2: Convert to fraction form
    618,272.77/851,759.81 = 581,071.90/x
  3. Step 3: Cross multiply
    618,272.77x = 851,759.81 × 581,071.90
  4. Step 4: Simplify right side
    618,272.77x = 494,933,688,234.98
  5. Step 5: Solve for x
    x = 494,933,688,234.98/618,272.77
  6. Step 6: Final answer
    x = 800,510.25

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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.