Home / 389,322.30-583,983.45-256,352.70

Finding the Fourth Proportional to 389,322.30, 583,983.45 and 256,352.70

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Solution

The fourth proportional to 389,322.30, 583,983.45 and 256,352.70 is: 384,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,322.30 : 583,983.45 = 256,352.70 : x
  2. Step 2: Convert to fraction form
    389,322.30/583,983.45 = 256,352.70/x
  3. Step 3: Cross multiply
    389,322.30x = 583,983.45 × 256,352.70
  4. Step 4: Simplify right side
    389,322.30x = 149,705,734,162.82
  5. Step 5: Solve for x
    x = 149,705,734,162.82/389,322.30
  6. Step 6: Final answer
    x = 384,529.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.