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Finding the Fourth Proportional to 405,318.44, 608,108.88 and 194,929.04

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Solution

The fourth proportional to 405,318.44, 608,108.88 and 194,929.04 is: 292,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,318.44 : 608,108.88 = 194,929.04 : x
  2. Step 2: Convert to fraction form
    405,318.44/608,108.88 = 194,929.04/x
  3. Step 3: Cross multiply
    405,318.44x = 608,108.88 × 194,929.04
  4. Step 4: Simplify right side
    405,318.44x = 118,538,080,193.88
  5. Step 5: Solve for x
    x = 118,538,080,193.88/405,318.44
  6. Step 6: Final answer
    x = 292,456.67

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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.