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Finding the Fourth Proportional to 635,398.20, 876,855.60 and 348,924.28

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Solution

The fourth proportional to 635,398.20, 876,855.60 and 348,924.28 is: 481,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,398.20 : 876,855.60 = 348,924.28 : x
  2. Step 2: Convert to fraction form
    635,398.20/876,855.60 = 348,924.28/x
  3. Step 3: Cross multiply
    635,398.20x = 876,855.60 × 348,924.28
  4. Step 4: Simplify right side
    635,398.20x = 305,956,208,893.97
  5. Step 5: Solve for x
    x = 305,956,208,893.97/635,398.20
  6. Step 6: Final answer
    x = 481,518.85

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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.