Home / 519,824.30-778,570.05-426,512.30

Finding the Fourth Proportional to 519,824.30, 778,570.05 and 426,512.30

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Solution

The fourth proportional to 519,824.30, 778,570.05 and 426,512.30 is: 638,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,824.30 : 778,570.05 = 426,512.30 : x
  2. Step 2: Convert to fraction form
    519,824.30/778,570.05 = 426,512.30/x
  3. Step 3: Cross multiply
    519,824.30x = 778,570.05 × 426,512.30
  4. Step 4: Simplify right side
    519,824.30x = 332,069,702,736.62
  5. Step 5: Solve for x
    x = 332,069,702,736.62/519,824.30
  6. Step 6: Final answer
    x = 638,811.43

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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.