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Finding the Fourth Proportional to 635,039.49, 876,365.82 and 348,586.23

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Solution

The fourth proportional to 635,039.49, 876,365.82 and 348,586.23 is: 481,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,039.49 : 876,365.82 = 348,586.23 : x
  2. Step 2: Convert to fraction form
    635,039.49/876,365.82 = 348,586.23/x
  3. Step 3: Cross multiply
    635,039.49x = 876,365.82 × 348,586.23
  4. Step 4: Simplify right side
    635,039.49x = 305,489,057,294.66
  5. Step 5: Solve for x
    x = 305,489,057,294.66/635,039.49
  6. Step 6: Final answer
    x = 481,055.21

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Double scale
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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.