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Finding the Fourth Proportional to 405,304.34, 607,765.44 and 236,873.12

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Solution

The fourth proportional to 405,304.34, 607,765.44 and 236,873.12 is: 355,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,304.34 : 607,765.44 = 236,873.12 : x
  2. Step 2: Convert to fraction form
    405,304.34/607,765.44 = 236,873.12/x
  3. Step 3: Cross multiply
    405,304.34x = 607,765.44 × 236,873.12
  4. Step 4: Simplify right side
    405,304.34x = 143,963,296,000.97
  5. Step 5: Solve for x
    x = 143,963,296,000.97/405,304.34
  6. Step 6: Final answer
    x = 355,198.01

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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.