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Finding the Fourth Proportional to 655,188.48, 981,758.88 and 455,898.24

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Solution

The fourth proportional to 655,188.48, 981,758.88 and 455,898.24 is: 683,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,188.48 : 981,758.88 = 455,898.24 : x
  2. Step 2: Convert to fraction form
    655,188.48/981,758.88 = 455,898.24/x
  3. Step 3: Cross multiply
    655,188.48x = 981,758.88 × 455,898.24
  4. Step 4: Simplify right side
    655,188.48x = 447,582,145,496.37
  5. Step 5: Solve for x
    x = 447,582,145,496.37/655,188.48
  6. Step 6: Final answer
    x = 683,134.94

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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.