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Finding the Fourth Proportional to 571,872.07, 789,278.07 and 317,305.27

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Solution

The fourth proportional to 571,872.07, 789,278.07 and 317,305.27 is: 437,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,872.07 : 789,278.07 = 317,305.27 : x
  2. Step 2: Convert to fraction form
    571,872.07/789,278.07 = 317,305.27/x
  3. Step 3: Cross multiply
    571,872.07x = 789,278.07 × 317,305.27
  4. Step 4: Simplify right side
    571,872.07x = 250,442,091,106.43
  5. Step 5: Solve for x
    x = 250,442,091,106.43/571,872.07
  6. Step 6: Final answer
    x = 437,933.77

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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.