Home / 427,528.08-589,896.84-257,758.56

Finding the Fourth Proportional to 427,528.08, 589,896.84 and 257,758.56

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Solution

The fourth proportional to 427,528.08, 589,896.84 and 257,758.56 is: 355,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,528.08 : 589,896.84 = 257,758.56 : x
  2. Step 2: Convert to fraction form
    427,528.08/589,896.84 = 257,758.56/x
  3. Step 3: Cross multiply
    427,528.08x = 589,896.84 × 257,758.56
  4. Step 4: Simplify right side
    427,528.08x = 152,050,960,026.95
  5. Step 5: Solve for x
    x = 152,050,960,026.95/427,528.08
  6. Step 6: Final answer
    x = 355,651.40

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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.