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Finding the Fourth Proportional to 504,564.60, 696,467.86 and 300,679.44

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Solution

The fourth proportional to 504,564.60, 696,467.86 and 300,679.44 is: 415,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,564.60 : 696,467.86 = 300,679.44 : x
  2. Step 2: Convert to fraction form
    504,564.60/696,467.86 = 300,679.44/x
  3. Step 3: Cross multiply
    504,564.60x = 696,467.86 × 300,679.44
  4. Step 4: Simplify right side
    504,564.60x = 209,413,566,122.80
  5. Step 5: Solve for x
    x = 209,413,566,122.80/504,564.60
  6. Step 6: Final answer
    x = 415,038.17

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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.