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Finding the Fourth Proportional to 893,107.31, 1,339,704.72 and 360,561.87

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Solution

The fourth proportional to 893,107.31, 1,339,704.72 and 360,561.87 is: 540,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,107.31 : 1,339,704.72 = 360,561.87 : x
  2. Step 2: Convert to fraction form
    893,107.31/1,339,704.72 = 360,561.87/x
  3. Step 3: Cross multiply
    893,107.31x = 1,339,704.72 × 360,561.87
  4. Step 4: Simplify right side
    893,107.31x = 483,046,439,091.03
  5. Step 5: Solve for x
    x = 483,046,439,091.03/893,107.31
  6. Step 6: Final answer
    x = 540,860.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.