Home / 768,401.87-1,152,586.70-256,104.10

Finding the Fourth Proportional to 768,401.87, 1,152,586.70 and 256,104.10

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Solution

The fourth proportional to 768,401.87, 1,152,586.70 and 256,104.10 is: 384,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,401.87 : 1,152,586.70 = 256,104.10 : x
  2. Step 2: Convert to fraction form
    768,401.87/1,152,586.70 = 256,104.10/x
  3. Step 3: Cross multiply
    768,401.87x = 1,152,586.70 × 256,104.10
  4. Step 4: Simplify right side
    768,401.87x = 295,182,175,553.36
  5. Step 5: Solve for x
    x = 295,182,175,553.36/768,401.87
  6. Step 6: Final answer
    x = 384,150.78

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1.5x scale

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.