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Finding the Fourth Proportional to 619,353.94, 854,664.19 and 343,726.58

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Solution

The fourth proportional to 619,353.94, 854,664.19 and 343,726.58 is: 474,318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,353.94 : 854,664.19 = 343,726.58 : x
  2. Step 2: Convert to fraction form
    619,353.94/854,664.19 = 343,726.58/x
  3. Step 3: Cross multiply
    619,353.94x = 854,664.19 × 343,726.58
  4. Step 4: Simplify right side
    619,353.94x = 293,770,799,077.17
  5. Step 5: Solve for x
    x = 293,770,799,077.17/619,353.94
  6. Step 6: Final answer
    x = 474,318.12

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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.