Home / 412,824.80-619,237.20-299,975.60

Finding the Fourth Proportional to 412,824.80, 619,237.20 and 299,975.60

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Solution

The fourth proportional to 412,824.80, 619,237.20 and 299,975.60 is: 449,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,824.80 : 619,237.20 = 299,975.60 : x
  2. Step 2: Convert to fraction form
    412,824.80/619,237.20 = 299,975.60/x
  3. Step 3: Cross multiply
    412,824.80x = 619,237.20 × 299,975.60
  4. Step 4: Simplify right side
    412,824.80x = 185,756,050,612.32
  5. Step 5: Solve for x
    x = 185,756,050,612.32/412,824.80
  6. Step 6: Final answer
    x = 449,963.40

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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.