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Finding the Fourth Proportional to 412,609.42, 618,960.42 and 370,228.96

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Solution

The fourth proportional to 412,609.42, 618,960.42 and 370,228.96 is: 555,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,609.42 : 618,960.42 = 370,228.96 : x
  2. Step 2: Convert to fraction form
    412,609.42/618,960.42 = 370,228.96/x
  3. Step 3: Cross multiply
    412,609.42x = 618,960.42 × 370,228.96
  4. Step 4: Simplify right side
    412,609.42x = 229,157,072,577.76
  5. Step 5: Solve for x
    x = 229,157,072,577.76/412,609.42
  6. Step 6: Final answer
    x = 555,384.98

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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.