Home / 427,453.28-589,907.04-257,742.08

Finding the Fourth Proportional to 427,453.28, 589,907.04 and 257,742.08

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Solution

The fourth proportional to 427,453.28, 589,907.04 and 257,742.08 is: 355,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,453.28 : 589,907.04 = 257,742.08 : x
  2. Step 2: Convert to fraction form
    427,453.28/589,907.04 = 257,742.08/x
  3. Step 3: Cross multiply
    427,453.28x = 589,907.04 × 257,742.08
  4. Step 4: Simplify right side
    427,453.28x = 152,043,867,496.24
  5. Step 5: Solve for x
    x = 152,043,867,496.24/427,453.28
  6. Step 6: Final answer
    x = 355,697.04

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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.