Home / 447,145.60-670,718.40-114,721.60

Finding the Fourth Proportional to 447,145.60, 670,718.40 and 114,721.60

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Solution

The fourth proportional to 447,145.60, 670,718.40 and 114,721.60 is: 172,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,145.60 : 670,718.40 = 114,721.60 : x
  2. Step 2: Convert to fraction form
    447,145.60/670,718.40 = 114,721.60/x
  3. Step 3: Cross multiply
    447,145.60x = 670,718.40 × 114,721.60
  4. Step 4: Simplify right side
    447,145.60x = 76,945,887,997.44
  5. Step 5: Solve for x
    x = 76,945,887,997.44/447,145.60
  6. Step 6: Final answer
    x = 172,082.40

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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.