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Finding the Fourth Proportional to 464,186.88, 640,576.80 and 262,982.88

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Solution

The fourth proportional to 464,186.88, 640,576.80 and 262,982.88 is: 362,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,186.88 : 640,576.80 = 262,982.88 : x
  2. Step 2: Convert to fraction form
    464,186.88/640,576.80 = 262,982.88/x
  3. Step 3: Cross multiply
    464,186.88x = 640,576.80 × 262,982.88
  4. Step 4: Simplify right side
    464,186.88x = 168,460,731,725.18
  5. Step 5: Solve for x
    x = 168,460,731,725.18/464,186.88
  6. Step 6: Final answer
    x = 362,915.75

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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.