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Finding the Fourth Proportional to 635,374.65, 876,759.89 and 348,888.45

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Solution

The fourth proportional to 635,374.65, 876,759.89 and 348,888.45 is: 481,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,374.65 : 876,759.89 = 348,888.45 : x
  2. Step 2: Convert to fraction form
    635,374.65/876,759.89 = 348,888.45/x
  3. Step 3: Cross multiply
    635,374.65x = 876,759.89 × 348,888.45
  4. Step 4: Simplify right side
    635,374.65x = 305,891,397,299.83
  5. Step 5: Solve for x
    x = 305,891,397,299.83/635,374.65
  6. Step 6: Final answer
    x = 481,434.69

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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.