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Finding the Fourth Proportional to 633,915.14, 874,673.61 and 375,678.26

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Solution

The fourth proportional to 633,915.14, 874,673.61 and 375,678.26 is: 518,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,915.14 : 874,673.61 = 375,678.26 : x
  2. Step 2: Convert to fraction form
    633,915.14/874,673.61 = 375,678.26/x
  3. Step 3: Cross multiply
    633,915.14x = 874,673.61 × 375,678.26
  4. Step 4: Simplify right side
    633,915.14x = 328,595,859,872.72
  5. Step 5: Solve for x
    x = 328,595,859,872.72/633,915.14
  6. Step 6: Final answer
    x = 518,359.38

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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.