Home / 489,936.57-734,618.85-190,066.77

Finding the Fourth Proportional to 489,936.57, 734,618.85 and 190,066.77

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Solution

The fourth proportional to 489,936.57, 734,618.85 and 190,066.77 is: 284,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,936.57 : 734,618.85 = 190,066.77 : x
  2. Step 2: Convert to fraction form
    489,936.57/734,618.85 = 190,066.77/x
  3. Step 3: Cross multiply
    489,936.57x = 734,618.85 × 190,066.77
  4. Step 4: Simplify right side
    489,936.57x = 139,626,632,000.62
  5. Step 5: Solve for x
    x = 139,626,632,000.62/489,936.57
  6. Step 6: Final answer
    x = 284,989.20

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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.