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Finding the Fourth Proportional to 635,832.36, 877,446 and 349,351.56

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Solution

The fourth proportional to 635,832.36, 877,446 and 349,351.56 is: 482,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,832.36 : 877,446 = 349,351.56 : x
  2. Step 2: Convert to fraction form
    635,832.36/877,446 = 349,351.56/x
  3. Step 3: Cross multiply
    635,832.36x = 877,446 × 349,351.56
  4. Step 4: Simplify right side
    635,832.36x = 306,537,128,915.76
  5. Step 5: Solve for x
    x = 306,537,128,915.76/635,832.36
  6. Step 6: Final answer
    x = 482,103.69

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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.