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Finding the Fourth Proportional to 422,495.60, 633,743.40 and 173,356.40

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Solution

The fourth proportional to 422,495.60, 633,743.40 and 173,356.40 is: 260,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,495.60 : 633,743.40 = 173,356.40 : x
  2. Step 2: Convert to fraction form
    422,495.60/633,743.40 = 173,356.40/x
  3. Step 3: Cross multiply
    422,495.60x = 633,743.40 × 173,356.40
  4. Step 4: Simplify right side
    422,495.60x = 109,863,474,347.76
  5. Step 5: Solve for x
    x = 109,863,474,347.76/422,495.60
  6. Step 6: Final answer
    x = 260,034.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.