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Finding the Fourth Proportional to 417,134.55, 625,887.90 and 192,374.34

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Solution

The fourth proportional to 417,134.55, 625,887.90 and 192,374.34 is: 288,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,134.55 : 625,887.90 = 192,374.34 : x
  2. Step 2: Convert to fraction form
    417,134.55/625,887.90 = 192,374.34/x
  3. Step 3: Cross multiply
    417,134.55x = 625,887.90 × 192,374.34
  4. Step 4: Simplify right side
    417,134.55x = 120,404,771,676.49
  5. Step 5: Solve for x
    x = 120,404,771,676.49/417,134.55
  6. Step 6: Final answer
    x = 288,647.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.