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Finding the Fourth Proportional to 504,546.45, 696,442.82 and 300,661.32

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Solution

The fourth proportional to 504,546.45, 696,442.82 and 300,661.32 is: 415,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,546.45 : 696,442.82 = 300,661.32 : x
  2. Step 2: Convert to fraction form
    504,546.45/696,442.82 = 300,661.32/x
  3. Step 3: Cross multiply
    504,546.45x = 696,442.82 × 300,661.32
  4. Step 4: Simplify right side
    504,546.45x = 209,393,416,062.42
  5. Step 5: Solve for x
    x = 209,393,416,062.42/504,546.45
  6. Step 6: Final answer
    x = 415,013.16

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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.