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Finding the Fourth Proportional to 489,023.01, 674,812.99 and 274,133.86

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Solution

The fourth proportional to 489,023.01, 674,812.99 and 274,133.86 is: 378,283.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,023.01 : 674,812.99 = 274,133.86 : x
  2. Step 2: Convert to fraction form
    489,023.01/674,812.99 = 274,133.86/x
  3. Step 3: Cross multiply
    489,023.01x = 674,812.99 × 274,133.86
  4. Step 4: Simplify right side
    489,023.01x = 184,989,089,726.84
  5. Step 5: Solve for x
    x = 184,989,089,726.84/489,023.01
  6. Step 6: Final answer
    x = 378,283.00

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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.