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Finding the Fourth Proportional to 1,344,139, 1,854,911.82 and 740,539.96

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Solution

The fourth proportional to 1,344,139, 1,854,911.82 and 740,539.96 is: 1,021,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,139 : 1,854,911.82 = 740,539.96 : x
  2. Step 2: Convert to fraction form
    1,344,139/1,854,911.82 = 740,539.96/x
  3. Step 3: Cross multiply
    1,344,139x = 1,854,911.82 × 740,539.96
  4. Step 4: Simplify right side
    1,344,139x = 1,373,636,324,986.33
  5. Step 5: Solve for x
    x = 1,373,636,324,986.33/1,344,139
  6. Step 6: Final answer
    x = 1,021,945.14

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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.