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Finding the Fourth Proportional to 504,564.59, 696,467.86 and 300,679.45

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Solution

The fourth proportional to 504,564.59, 696,467.86 and 300,679.45 is: 415,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,564.59 : 696,467.86 = 300,679.45 : x
  2. Step 2: Convert to fraction form
    504,564.59/696,467.86 = 300,679.45/x
  3. Step 3: Cross multiply
    504,564.59x = 696,467.86 × 300,679.45
  4. Step 4: Simplify right side
    504,564.59x = 209,413,573,087.48
  5. Step 5: Solve for x
    x = 209,413,573,087.48/504,564.59
  6. Step 6: Final answer
    x = 415,038.19

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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.