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Finding the Fourth Proportional to 370,551.92, 511,347.94 and 200,782.40

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Solution

The fourth proportional to 370,551.92, 511,347.94 and 200,782.40 is: 277,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,551.92 : 511,347.94 = 200,782.40 : x
  2. Step 2: Convert to fraction form
    370,551.92/511,347.94 = 200,782.40/x
  3. Step 3: Cross multiply
    370,551.92x = 511,347.94 × 200,782.40
  4. Step 4: Simplify right side
    370,551.92x = 102,669,663,569.56
  5. Step 5: Solve for x
    x = 102,669,663,569.56/370,551.92
  6. Step 6: Final answer
    x = 277,072.28

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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.