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Finding the Fourth Proportional to 1,102,659, 1,521,556 and 619,220.22

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Solution

The fourth proportional to 1,102,659, 1,521,556 and 619,220.22 is: 854,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,659 : 1,521,556 = 619,220.22 : x
  2. Step 2: Convert to fraction form
    1,102,659/1,521,556 = 619,220.22/x
  3. Step 3: Cross multiply
    1,102,659x = 1,521,556 × 619,220.22
  4. Step 4: Simplify right side
    1,102,659x = 942,178,241,062.32
  5. Step 5: Solve for x
    x = 942,178,241,062.32/1,102,659
  6. Step 6: Final answer
    x = 854,460.21

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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.