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Finding the Fourth Proportional to 635,844.52, 877,465.92 and 349,383.16

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Solution

The fourth proportional to 635,844.52, 877,465.92 and 349,383.16 is: 482,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,844.52 : 877,465.92 = 349,383.16 : x
  2. Step 2: Convert to fraction form
    635,844.52/877,465.92 = 349,383.16/x
  3. Step 3: Cross multiply
    635,844.52x = 877,465.92 × 349,383.16
  4. Step 4: Simplify right side
    635,844.52x = 306,571,815,921.91
  5. Step 5: Solve for x
    x = 306,571,815,921.91/635,844.52
  6. Step 6: Final answer
    x = 482,149.03

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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.