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Finding the Fourth Proportional to 370,490.99, 511,278.06 and 200,725.11

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Solution

The fourth proportional to 370,490.99, 511,278.06 and 200,725.11 is: 277,000.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,490.99 : 511,278.06 = 200,725.11 : x
  2. Step 2: Convert to fraction form
    370,490.99/511,278.06 = 200,725.11/x
  3. Step 3: Cross multiply
    370,490.99x = 511,278.06 × 200,725.11
  4. Step 4: Simplify right side
    370,490.99x = 102,626,344,834.09
  5. Step 5: Solve for x
    x = 102,626,344,834.09/370,490.99
  6. Step 6: Final answer
    x = 277,000.92

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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.