Home / 402,933.20-603,670.80-192,106.40

Finding the Fourth Proportional to 402,933.20, 603,670.80 and 192,106.40

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Solution

The fourth proportional to 402,933.20, 603,670.80 and 192,106.40 is: 287,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,933.20 : 603,670.80 = 192,106.40 : x
  2. Step 2: Convert to fraction form
    402,933.20/603,670.80 = 192,106.40/x
  3. Step 3: Cross multiply
    402,933.20x = 603,670.80 × 192,106.40
  4. Step 4: Simplify right side
    402,933.20x = 115,969,024,173.12
  5. Step 5: Solve for x
    x = 115,969,024,173.12/402,933.20
  6. Step 6: Final answer
    x = 287,812.03

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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.