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Finding the Fourth Proportional to 442,563.45, 610,632.58 and 251,561.81

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Solution

The fourth proportional to 442,563.45, 610,632.58 and 251,561.81 is: 347,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,563.45 : 610,632.58 = 251,561.81 : x
  2. Step 2: Convert to fraction form
    442,563.45/610,632.58 = 251,561.81/x
  3. Step 3: Cross multiply
    442,563.45x = 610,632.58 × 251,561.81
  4. Step 4: Simplify right side
    442,563.45x = 153,611,837,069.77
  5. Step 5: Solve for x
    x = 153,611,837,069.77/442,563.45
  6. Step 6: Final answer
    x = 347,095.62

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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.