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Finding the Fourth Proportional to 370,966.97, 511,887.88 and 220,034.81

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Solution

The fourth proportional to 370,966.97, 511,887.88 and 220,034.81 is: 303,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,966.97 : 511,887.88 = 220,034.81 : x
  2. Step 2: Convert to fraction form
    370,966.97/511,887.88 = 220,034.81/x
  3. Step 3: Cross multiply
    370,966.97x = 511,887.88 × 220,034.81
  4. Step 4: Simplify right side
    370,966.97x = 112,633,153,971.87
  5. Step 5: Solve for x
    x = 112,633,153,971.87/370,966.97
  6. Step 6: Final answer
    x = 303,620.44

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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.