Home / 499,816.41-689,029.23-356,327.34

Finding the Fourth Proportional to 499,816.41, 689,029.23 and 356,327.34

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Solution

The fourth proportional to 499,816.41, 689,029.23 and 356,327.34 is: 491,220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,816.41 : 689,029.23 = 356,327.34 : x
  2. Step 2: Convert to fraction form
    499,816.41/689,029.23 = 356,327.34/x
  3. Step 3: Cross multiply
    499,816.41x = 689,029.23 × 356,327.34
  4. Step 4: Simplify right side
    499,816.41x = 245,519,951,460.52
  5. Step 5: Solve for x
    x = 245,519,951,460.52/499,816.41
  6. Step 6: Final answer
    x = 491,220.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.