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Finding the Fourth Proportional to 368,861.04, 552,404.64 and 210,609.84

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Solution

The fourth proportional to 368,861.04, 552,404.64 and 210,609.84 is: 315,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,861.04 : 552,404.64 = 210,609.84 : x
  2. Step 2: Convert to fraction form
    368,861.04/552,404.64 = 210,609.84/x
  3. Step 3: Cross multiply
    368,861.04x = 552,404.64 × 210,609.84
  4. Step 4: Simplify right side
    368,861.04x = 116,341,852,845.66
  5. Step 5: Solve for x
    x = 116,341,852,845.66/368,861.04
  6. Step 6: Final answer
    x = 315,408.35

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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.