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Finding the Fourth Proportional to 633,999.25, 874,919.17 and 347,521.29

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Solution

The fourth proportional to 633,999.25, 874,919.17 and 347,521.29 is: 479,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,999.25 : 874,919.17 = 347,521.29 : x
  2. Step 2: Convert to fraction form
    633,999.25/874,919.17 = 347,521.29/x
  3. Step 3: Cross multiply
    633,999.25x = 874,919.17 × 347,521.29
  4. Step 4: Simplify right side
    633,999.25x = 304,053,038,604.13
  5. Step 5: Solve for x
    x = 304,053,038,604.13/633,999.25
  6. Step 6: Final answer
    x = 479,579.49

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1.5x scale

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.