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Finding the Fourth Proportional to 453,399.30, 680,358.15 and 173,117.70

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Solution

The fourth proportional to 453,399.30, 680,358.15 and 173,117.70 is: 259,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,399.30 : 680,358.15 = 173,117.70 : x
  2. Step 2: Convert to fraction form
    453,399.30/680,358.15 = 173,117.70/x
  3. Step 3: Cross multiply
    453,399.30x = 680,358.15 × 173,117.70
  4. Step 4: Simplify right side
    453,399.30x = 117,782,038,104.26
  5. Step 5: Solve for x
    x = 117,782,038,104.26/453,399.30
  6. Step 6: Final answer
    x = 259,775.52

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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.