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Finding the Fourth Proportional to 340,678.33, 510,629.97 and 207,264.49

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Solution

The fourth proportional to 340,678.33, 510,629.97 and 207,264.49 is: 310,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,678.33 : 510,629.97 = 207,264.49 : x
  2. Step 2: Convert to fraction form
    340,678.33/510,629.97 = 207,264.49/x
  3. Step 3: Cross multiply
    340,678.33x = 510,629.97 × 207,264.49
  4. Step 4: Simplify right side
    340,678.33x = 105,835,460,310.77
  5. Step 5: Solve for x
    x = 105,835,460,310.77/340,678.33
  6. Step 6: Final answer
    x = 310,660.97

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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.