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Finding the Fourth Proportional to 3,503,178, 5,254,767 and 843,786

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Solution

The fourth proportional to 3,503,178, 5,254,767 and 843,786 is: 1,265,679

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503,178 : 5,254,767 = 843,786 : x
  2. Step 2: Convert to fraction form
    3,503,178/5,254,767 = 843,786/x
  3. Step 3: Cross multiply
    3,503,178x = 5,254,767 × 843,786
  4. Step 4: Simplify right side
    3,503,178x = 4,433,898,827,862
  5. Step 5: Solve for x
    x = 4,433,898,827,862/3,503,178
  6. Step 6: Final answer
    x = 1,265,679

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.