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Finding the Fourth Proportional to 464,915.28, 641,592.54 and 260,980.89

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Solution

The fourth proportional to 464,915.28, 641,592.54 and 260,980.89 is: 360,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,915.28 : 641,592.54 = 260,980.89 : x
  2. Step 2: Convert to fraction form
    464,915.28/641,592.54 = 260,980.89/x
  3. Step 3: Cross multiply
    464,915.28x = 641,592.54 × 260,980.89
  4. Step 4: Simplify right side
    464,915.28x = 167,443,392,106.56
  5. Step 5: Solve for x
    x = 167,443,392,106.56/464,915.28
  6. Step 6: Final answer
    x = 360,158.93

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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.