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Finding the Fourth Proportional to 619,059.46, 854,337.63 and 347,214.55

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Solution

The fourth proportional to 619,059.46, 854,337.63 and 347,214.55 is: 479,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,059.46 : 854,337.63 = 347,214.55 : x
  2. Step 2: Convert to fraction form
    619,059.46/854,337.63 = 347,214.55/x
  3. Step 3: Cross multiply
    619,059.46x = 854,337.63 × 347,214.55
  4. Step 4: Simplify right side
    619,059.46x = 296,638,455,748.52
  5. Step 5: Solve for x
    x = 296,638,455,748.52/619,059.46
  6. Step 6: Final answer
    x = 479,176.03

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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.