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Finding the Fourth Proportional to 340,520.94, 469,918.89 and 197,364.02

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Solution

The fourth proportional to 340,520.94, 469,918.89 and 197,364.02 is: 272,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,520.94 : 469,918.89 = 197,364.02 : x
  2. Step 2: Convert to fraction form
    340,520.94/469,918.89 = 197,364.02/x
  3. Step 3: Cross multiply
    340,520.94x = 469,918.89 × 197,364.02
  4. Step 4: Simplify right side
    340,520.94x = 92,745,081,204.34
  5. Step 5: Solve for x
    x = 92,745,081,204.34/340,520.94
  6. Step 6: Final answer
    x = 272,362.34

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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.