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Finding the Fourth Proportional to 464,275.76, 640,833.41 and 273,399.87

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Solution

The fourth proportional to 464,275.76, 640,833.41 and 273,399.87 is: 377,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,275.76 : 640,833.41 = 273,399.87 : x
  2. Step 2: Convert to fraction form
    464,275.76/640,833.41 = 273,399.87/x
  3. Step 3: Cross multiply
    464,275.76x = 640,833.41 × 273,399.87
  4. Step 4: Simplify right side
    464,275.76x = 175,203,770,985.66
  5. Step 5: Solve for x
    x = 175,203,770,985.66/464,275.76
  6. Step 6: Final answer
    x = 377,370.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.