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Finding the Fourth Proportional to 619,554.07, 854,999.35 and 347,642.07

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Solution

The fourth proportional to 619,554.07, 854,999.35 and 347,642.07 is: 479,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,554.07 : 854,999.35 = 347,642.07 : x
  2. Step 2: Convert to fraction form
    619,554.07/854,999.35 = 347,642.07/x
  3. Step 3: Cross multiply
    619,554.07x = 854,999.35 × 347,642.07
  4. Step 4: Simplify right side
    619,554.07x = 297,233,745,785.24
  5. Step 5: Solve for x
    x = 297,233,745,785.24/619,554.07
  6. Step 6: Final answer
    x = 479,754.33

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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.