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Finding the Fourth Proportional to 504,940.47, 696,583.02 and 300,876.90

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Solution

The fourth proportional to 504,940.47, 696,583.02 and 300,876.90 is: 415,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,940.47 : 696,583.02 = 300,876.90 : x
  2. Step 2: Convert to fraction form
    504,940.47/696,583.02 = 300,876.90/x
  3. Step 3: Cross multiply
    504,940.47x = 696,583.02 × 300,876.90
  4. Step 4: Simplify right side
    504,940.47x = 209,585,739,650.24
  5. Step 5: Solve for x
    x = 209,585,739,650.24/504,940.47
  6. Step 6: Final answer
    x = 415,070.20

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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.