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Finding the Fourth Proportional to 577,315.95, 796,682.25 and 322,690.83

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Solution

The fourth proportional to 577,315.95, 796,682.25 and 322,690.83 is: 445,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,315.95 : 796,682.25 = 322,690.83 : x
  2. Step 2: Convert to fraction form
    577,315.95/796,682.25 = 322,690.83/x
  3. Step 3: Cross multiply
    577,315.95x = 796,682.25 × 322,690.83
  4. Step 4: Simplify right side
    577,315.95x = 257,082,056,498.77
  5. Step 5: Solve for x
    x = 257,082,056,498.77/577,315.95
  6. Step 6: Final answer
    x = 445,305.65

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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.