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Finding the Fourth Proportional to 683,970.72, 943,882.56 and 373,879.64

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Solution

The fourth proportional to 683,970.72, 943,882.56 and 373,879.64 is: 515,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,970.72 : 943,882.56 = 373,879.64 : x
  2. Step 2: Convert to fraction form
    683,970.72/943,882.56 = 373,879.64/x
  3. Step 3: Cross multiply
    683,970.72x = 943,882.56 × 373,879.64
  4. Step 4: Simplify right side
    683,970.72x = 352,898,467,015.67
  5. Step 5: Solve for x
    x = 352,898,467,015.67/683,970.72
  6. Step 6: Final answer
    x = 515,955.52

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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.