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Finding the Fourth Proportional to 1,213,219, 1,674,242.22 and 676,675

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Solution

The fourth proportional to 1,213,219, 1,674,242.22 and 676,675 is: 933,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,219 : 1,674,242.22 = 676,675 : x
  2. Step 2: Convert to fraction form
    1,213,219/1,674,242.22 = 676,675/x
  3. Step 3: Cross multiply
    1,213,219x = 1,674,242.22 × 676,675
  4. Step 4: Simplify right side
    1,213,219x = 1,132,917,854,218.50
  5. Step 5: Solve for x
    x = 1,132,917,854,218.50/1,213,219
  6. Step 6: Final answer
    x = 933,811.50

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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.