Home / 665,756.11-998,641.46-192,445.57

Finding the Fourth Proportional to 665,756.11, 998,641.46 and 192,445.57

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Solution

The fourth proportional to 665,756.11, 998,641.46 and 192,445.57 is: 288,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,756.11 : 998,641.46 = 192,445.57 : x
  2. Step 2: Convert to fraction form
    665,756.11/998,641.46 = 192,445.57/x
  3. Step 3: Cross multiply
    665,756.11x = 998,641.46 × 192,445.57
  4. Step 4: Simplify right side
    665,756.11x = 192,184,124,995.33
  5. Step 5: Solve for x
    x = 192,184,124,995.33/665,756.11
  6. Step 6: Final answer
    x = 288,670.46

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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.