Home / 426,984.32-589,154.64-257,227.76

Finding the Fourth Proportional to 426,984.32, 589,154.64 and 257,227.76

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Solution

The fourth proportional to 426,984.32, 589,154.64 and 257,227.76 is: 354,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,984.32 : 589,154.64 = 257,227.76 : x
  2. Step 2: Convert to fraction form
    426,984.32/589,154.64 = 257,227.76/x
  3. Step 3: Cross multiply
    426,984.32x = 589,154.64 × 257,227.76
  4. Step 4: Simplify right side
    426,984.32x = 151,546,928,340.81
  5. Step 5: Solve for x
    x = 151,546,928,340.81/426,984.32
  6. Step 6: Final answer
    x = 354,923.87

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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.