Home / 493,519.32-681,015.24-289,548.76

Finding the Fourth Proportional to 493,519.32, 681,015.24 and 289,548.76

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Solution

The fourth proportional to 493,519.32, 681,015.24 and 289,548.76 is: 399,552.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,519.32 : 681,015.24 = 289,548.76 : x
  2. Step 2: Convert to fraction form
    493,519.32/681,015.24 = 289,548.76/x
  3. Step 3: Cross multiply
    493,519.32x = 681,015.24 × 289,548.76
  4. Step 4: Simplify right side
    493,519.32x = 197,187,118,283.10
  5. Step 5: Solve for x
    x = 197,187,118,283.10/493,519.32
  6. Step 6: Final answer
    x = 399,552.99

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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.