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Finding the Fourth Proportional to 675,105.97, 931,662.47 and 384,711.33

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Solution

The fourth proportional to 675,105.97, 931,662.47 and 384,711.33 is: 530,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,105.97 : 931,662.47 = 384,711.33 : x
  2. Step 2: Convert to fraction form
    675,105.97/931,662.47 = 384,711.33/x
  3. Step 3: Cross multiply
    675,105.97x = 931,662.47 × 384,711.33
  4. Step 4: Simplify right side
    675,105.97x = 358,421,107,944.79
  5. Step 5: Solve for x
    x = 358,421,107,944.79/675,105.97
  6. Step 6: Final answer
    x = 530,910.88

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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.