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Finding the Fourth Proportional to 633,998.72, 951,143.88 and 207,548.30

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Solution

The fourth proportional to 633,998.72, 951,143.88 and 207,548.30 is: 311,370.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,998.72 : 951,143.88 = 207,548.30 : x
  2. Step 2: Convert to fraction form
    633,998.72/951,143.88 = 207,548.30/x
  3. Step 3: Cross multiply
    633,998.72x = 951,143.88 × 207,548.30
  4. Step 4: Simplify right side
    633,998.72x = 197,408,295,349.40
  5. Step 5: Solve for x
    x = 197,408,295,349.40/633,998.72
  6. Step 6: Final answer
    x = 311,370.18

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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.