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Finding the Fourth Proportional to 611,815.73, 917,408.35 and 274,567.27

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Solution

The fourth proportional to 611,815.73, 917,408.35 and 274,567.27 is: 411,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,815.73 : 917,408.35 = 274,567.27 : x
  2. Step 2: Convert to fraction form
    611,815.73/917,408.35 = 274,567.27/x
  3. Step 3: Cross multiply
    611,815.73x = 917,408.35 × 274,567.27
  4. Step 4: Simplify right side
    611,815.73x = 251,890,306,676.75
  5. Step 5: Solve for x
    x = 251,890,306,676.75/611,815.73
  6. Step 6: Final answer
    x = 411,709.43

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1.5x scale

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.