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Finding the Fourth Proportional to 551,638.40, 827,441.13 and 152,303.54

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Solution

The fourth proportional to 551,638.40, 827,441.13 and 152,303.54 is: 228,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,638.40 : 827,441.13 = 152,303.54 : x
  2. Step 2: Convert to fraction form
    551,638.40/827,441.13 = 152,303.54/x
  3. Step 3: Cross multiply
    551,638.40x = 827,441.13 × 152,303.54
  4. Step 4: Simplify right side
    551,638.40x = 126,022,213,240.60
  5. Step 5: Solve for x
    x = 126,022,213,240.60/551,638.40
  6. Step 6: Final answer
    x = 228,450.76

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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.