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Finding the Fourth Proportional to 578,395.71, 798,185.96 and 323,746.95

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Solution

The fourth proportional to 578,395.71, 798,185.96 and 323,746.95 is: 446,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,395.71 : 798,185.96 = 323,746.95 : x
  2. Step 2: Convert to fraction form
    578,395.71/798,185.96 = 323,746.95/x
  3. Step 3: Cross multiply
    578,395.71x = 798,185.96 × 323,746.95
  4. Step 4: Simplify right side
    578,395.71x = 258,410,268,464.09
  5. Step 5: Solve for x
    x = 258,410,268,464.09/578,395.71
  6. Step 6: Final answer
    x = 446,770.72

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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.