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Finding the Fourth Proportional to 590,346.78, 814,888.91 and 348,630.33

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Solution

The fourth proportional to 590,346.78, 814,888.91 and 348,630.33 is: 481,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,346.78 : 814,888.91 = 348,630.33 : x
  2. Step 2: Convert to fraction form
    590,346.78/814,888.91 = 348,630.33/x
  3. Step 3: Cross multiply
    590,346.78x = 814,888.91 × 348,630.33
  4. Step 4: Simplify right side
    590,346.78x = 284,094,987,863.49
  5. Step 5: Solve for x
    x = 284,094,987,863.49/590,346.78
  6. Step 6: Final answer
    x = 481,234.08

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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.