Home / 519,910.16-780,113.20-283,247.60

Finding the Fourth Proportional to 519,910.16, 780,113.20 and 283,247.60

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Solution

The fourth proportional to 519,910.16, 780,113.20 and 283,247.60 is: 425,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,910.16 : 780,113.20 = 283,247.60 : x
  2. Step 2: Convert to fraction form
    519,910.16/780,113.20 = 283,247.60/x
  3. Step 3: Cross multiply
    519,910.16x = 780,113.20 × 283,247.60
  4. Step 4: Simplify right side
    519,910.16x = 220,965,191,628.32
  5. Step 5: Solve for x
    x = 220,965,191,628.32/519,910.16
  6. Step 6: Final answer
    x = 425,006.49

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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.