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Finding the Fourth Proportional to 453,440.11, 680,020.70 and 149,779.72

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Solution

The fourth proportional to 453,440.11, 680,020.70 and 149,779.72 is: 224,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,440.11 : 680,020.70 = 149,779.72 : x
  2. Step 2: Convert to fraction form
    453,440.11/680,020.70 = 149,779.72/x
  3. Step 3: Cross multiply
    453,440.11x = 680,020.70 × 149,779.72
  4. Step 4: Simplify right side
    453,440.11x = 101,853,310,040.20
  5. Step 5: Solve for x
    x = 101,853,310,040.20/453,440.11
  6. Step 6: Final answer
    x = 224,623.51

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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.