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Finding the Fourth Proportional to 442,562.70, 610,631.55 and 251,561.06

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Solution

The fourth proportional to 442,562.70, 610,631.55 and 251,561.06 is: 347,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,562.70 : 610,631.55 = 251,561.06 : x
  2. Step 2: Convert to fraction form
    442,562.70/610,631.55 = 251,561.06/x
  3. Step 3: Cross multiply
    442,562.70x = 610,631.55 × 251,561.06
  4. Step 4: Simplify right side
    442,562.70x = 153,611,116,934.29
  5. Step 5: Solve for x
    x = 153,611,116,934.29/442,562.70
  6. Step 6: Final answer
    x = 347,094.59

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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.