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Finding the Fourth Proportional to 426,855.94, 589,171.85 and 245,586.44

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Solution

The fourth proportional to 426,855.94, 589,171.85 and 245,586.44 is: 338,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,855.94 : 589,171.85 = 245,586.44 : x
  2. Step 2: Convert to fraction form
    426,855.94/589,171.85 = 245,586.44/x
  3. Step 3: Cross multiply
    426,855.94x = 589,171.85 × 245,586.44
  4. Step 4: Simplify right side
    426,855.94x = 144,692,617,189.71
  5. Step 5: Solve for x
    x = 144,692,617,189.71/426,855.94
  6. Step 6: Final answer
    x = 338,972.95

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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.