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Finding the Fourth Proportional to 1,192,945, 1,646,264.10 and 656,401

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Solution

The fourth proportional to 1,192,945, 1,646,264.10 and 656,401 is: 905,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,945 : 1,646,264.10 = 656,401 : x
  2. Step 2: Convert to fraction form
    1,192,945/1,646,264.10 = 656,401/x
  3. Step 3: Cross multiply
    1,192,945x = 1,646,264.10 × 656,401
  4. Step 4: Simplify right side
    1,192,945x = 1,080,609,401,504.10
  5. Step 5: Solve for x
    x = 1,080,609,401,504.10/1,192,945
  6. Step 6: Final answer
    x = 905,833.38

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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.