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Finding the Fourth Proportional to 635,326.62, 876,763.26 and 348,844.20

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Solution

The fourth proportional to 635,326.62, 876,763.26 and 348,844.20 is: 481,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,326.62 : 876,763.26 = 348,844.20 : x
  2. Step 2: Convert to fraction form
    635,326.62/876,763.26 = 348,844.20/x
  3. Step 3: Cross multiply
    635,326.62x = 876,763.26 × 348,844.20
  4. Step 4: Simplify right side
    635,326.62x = 305,853,778,024.09
  5. Step 5: Solve for x
    x = 305,853,778,024.09/635,326.62
  6. Step 6: Final answer
    x = 481,411.87

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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.