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Finding the Fourth Proportional to 570,844.44, 787,791.29 and 316,195.61

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Solution

The fourth proportional to 570,844.44, 787,791.29 and 316,195.61 is: 436,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,844.44 : 787,791.29 = 316,195.61 : x
  2. Step 2: Convert to fraction form
    570,844.44/787,791.29 = 316,195.61/x
  3. Step 3: Cross multiply
    570,844.44x = 787,791.29 × 316,195.61
  4. Step 4: Simplify right side
    570,844.44x = 249,096,141,974.30
  5. Step 5: Solve for x
    x = 249,096,141,974.30/570,844.44
  6. Step 6: Final answer
    x = 436,364.31

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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.