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Finding the Fourth Proportional to 620,057, 929,849.34 and 367,408.76

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Solution

The fourth proportional to 620,057, 929,849.34 and 367,408.76 is: 550,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,057 : 929,849.34 = 367,408.76 : x
  2. Step 2: Convert to fraction form
    620,057/929,849.34 = 367,408.76/x
  3. Step 3: Cross multiply
    620,057x = 929,849.34 × 367,408.76
  4. Step 4: Simplify right side
    620,057x = 341,634,792,996.22
  5. Step 5: Solve for x
    x = 341,634,792,996.22/620,057
  6. Step 6: Final answer
    x = 550,973.21

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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.