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Finding the Fourth Proportional to 635,374.90, 876,760.23 and 348,888.70

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Solution

The fourth proportional to 635,374.90, 876,760.23 and 348,888.70 is: 481,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,374.90 : 876,760.23 = 348,888.70 : x
  2. Step 2: Convert to fraction form
    635,374.90/876,760.23 = 348,888.70/x
  3. Step 3: Cross multiply
    635,374.90x = 876,760.23 × 348,888.70
  4. Step 4: Simplify right side
    635,374.90x = 305,891,736,856.40
  5. Step 5: Solve for x
    x = 305,891,736,856.40/635,374.90
  6. Step 6: Final answer
    x = 481,435.03

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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.