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Finding the Fourth Proportional to 445,290.01, 666,358.31 and 276,889.64

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Solution

The fourth proportional to 445,290.01, 666,358.31 and 276,889.64 is: 414,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,290.01 : 666,358.31 = 276,889.64 : x
  2. Step 2: Convert to fraction form
    445,290.01/666,358.31 = 276,889.64/x
  3. Step 3: Cross multiply
    445,290.01x = 666,358.31 × 276,889.64
  4. Step 4: Simplify right side
    445,290.01x = 184,507,709,927.34
  5. Step 5: Solve for x
    x = 184,507,709,927.34/445,290.01
  6. Step 6: Final answer
    x = 414,354.03

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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.