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Finding the Fourth Proportional to 571,826.94, 789,118.65 and 326,807.61

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Solution

The fourth proportional to 571,826.94, 789,118.65 and 326,807.61 is: 450,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,826.94 : 789,118.65 = 326,807.61 : x
  2. Step 2: Convert to fraction form
    571,826.94/789,118.65 = 326,807.61/x
  3. Step 3: Cross multiply
    571,826.94x = 789,118.65 × 326,807.61
  4. Step 4: Simplify right side
    571,826.94x = 257,889,980,012.93
  5. Step 5: Solve for x
    x = 257,889,980,012.93/571,826.94
  6. Step 6: Final answer
    x = 450,993.06

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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.