Home / 356,315.32-491,709.09-192,970.45

Finding the Fourth Proportional to 356,315.32, 491,709.09 and 192,970.45

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Solution

The fourth proportional to 356,315.32, 491,709.09 and 192,970.45 is: 266,295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,315.32 : 491,709.09 = 192,970.45 : x
  2. Step 2: Convert to fraction form
    356,315.32/491,709.09 = 192,970.45/x
  3. Step 3: Cross multiply
    356,315.32x = 491,709.09 × 192,970.45
  4. Step 4: Simplify right side
    356,315.32x = 94,885,324,366.39
  5. Step 5: Solve for x
    x = 94,885,324,366.39/356,315.32
  6. Step 6: Final answer
    x = 266,295.94

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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.