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Finding the Fourth Proportional to 619,204.32, 854,624.64 and 401,682.48

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Solution

The fourth proportional to 619,204.32, 854,624.64 and 401,682.48 is: 554,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,204.32 : 854,624.64 = 401,682.48 : x
  2. Step 2: Convert to fraction form
    619,204.32/854,624.64 = 401,682.48/x
  3. Step 3: Cross multiply
    619,204.32x = 854,624.64 × 401,682.48
  4. Step 4: Simplify right side
    619,204.32x = 343,287,744,864.31
  5. Step 5: Solve for x
    x = 343,287,744,864.31/619,204.32
  6. Step 6: Final answer
    x = 554,401.40

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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.