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Finding the Fourth Proportional to 893,993.10, 1,340,704.53 and 294,842.58

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Solution

The fourth proportional to 893,993.10, 1,340,704.53 and 294,842.58 is: 442,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,993.10 : 1,340,704.53 = 294,842.58 : x
  2. Step 2: Convert to fraction form
    893,993.10/1,340,704.53 = 294,842.58/x
  3. Step 3: Cross multiply
    893,993.10x = 1,340,704.53 × 294,842.58
  4. Step 4: Simplify right side
    893,993.10x = 395,296,782,642.89
  5. Step 5: Solve for x
    x = 395,296,782,642.89/893,993.10
  6. Step 6: Final answer
    x = 442,169.84

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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.