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Finding the Fourth Proportional to 863,973.63, 1,295,979.11 and 264,921.53

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Solution

The fourth proportional to 863,973.63, 1,295,979.11 and 264,921.53 is: 397,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,973.63 : 1,295,979.11 = 264,921.53 : x
  2. Step 2: Convert to fraction form
    863,973.63/1,295,979.11 = 264,921.53/x
  3. Step 3: Cross multiply
    863,973.63x = 1,295,979.11 × 264,921.53
  4. Step 4: Simplify right side
    863,973.63x = 343,332,760,864.74
  5. Step 5: Solve for x
    x = 343,332,760,864.74/863,973.63
  6. Step 6: Final answer
    x = 397,388.01

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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.