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Finding the Fourth Proportional to 442,893.95, 618,651.85 and 442,893.95

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Solution

The fourth proportional to 442,893.95, 618,651.85 and 442,893.95 is: 618,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,893.95 : 618,651.85 = 442,893.95 : x
  2. Step 2: Convert to fraction form
    442,893.95/618,651.85 = 442,893.95/x
  3. Step 3: Cross multiply
    442,893.95x = 618,651.85 × 442,893.95
  4. Step 4: Simplify right side
    442,893.95x = 273,997,161,521.31
  5. Step 5: Solve for x
    x = 273,997,161,521.31/442,893.95
  6. Step 6: Final answer
    x = 618,651.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.