Home / 407,156.37-561,943.16-225,926.67

Finding the Fourth Proportional to 407,156.37, 561,943.16 and 225,926.67

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Solution

The fourth proportional to 407,156.37, 561,943.16 and 225,926.67 is: 311,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,156.37 : 561,943.16 = 225,926.67 : x
  2. Step 2: Convert to fraction form
    407,156.37/561,943.16 = 225,926.67/x
  3. Step 3: Cross multiply
    407,156.37x = 561,943.16 × 225,926.67
  4. Step 4: Simplify right side
    407,156.37x = 126,957,942,928.73
  5. Step 5: Solve for x
    x = 126,957,942,928.73/407,156.37
  6. Step 6: Final answer
    x = 311,816.18

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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.