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Finding the Fourth Proportional to 561,980.95, 842,749.53 and 224,958.78

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Solution

The fourth proportional to 561,980.95, 842,749.53 and 224,958.78 is: 337,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,980.95 : 842,749.53 = 224,958.78 : x
  2. Step 2: Convert to fraction form
    561,980.95/842,749.53 = 224,958.78/x
  3. Step 3: Cross multiply
    561,980.95x = 842,749.53 × 224,958.78
  4. Step 4: Simplify right side
    561,980.95x = 189,583,905,270.78
  5. Step 5: Solve for x
    x = 189,583,905,270.78/561,980.95
  6. Step 6: Final answer
    x = 337,349.35

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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.