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Finding the Fourth Proportional to 862,965, 1,190,897.16 and 481,015.92

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Solution

The fourth proportional to 862,965, 1,190,897.16 and 481,015.92 is: 663,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,965 : 1,190,897.16 = 481,015.92 : x
  2. Step 2: Convert to fraction form
    862,965/1,190,897.16 = 481,015.92/x
  3. Step 3: Cross multiply
    862,965x = 1,190,897.16 × 481,015.92
  4. Step 4: Simplify right side
    862,965x = 572,840,493,042.79
  5. Step 5: Solve for x
    x = 572,840,493,042.79/862,965
  6. Step 6: Final answer
    x = 663,805.01

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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.