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Finding the Fourth Proportional to 2,074,272, 3,111,408 and 673,440

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Solution

The fourth proportional to 2,074,272, 3,111,408 and 673,440 is: 1,010,160

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074,272 : 3,111,408 = 673,440 : x
  2. Step 2: Convert to fraction form
    2,074,272/3,111,408 = 673,440/x
  3. Step 3: Cross multiply
    2,074,272x = 3,111,408 × 673,440
  4. Step 4: Simplify right side
    2,074,272x = 2,095,346,603,520
  5. Step 5: Solve for x
    x = 2,095,346,603,520/2,074,272
  6. Step 6: Final answer
    x = 1,010,160

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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.