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Finding the Fourth Proportional to 629,548.39, 868,563.57 and 384,443.71

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Solution

The fourth proportional to 629,548.39, 868,563.57 and 384,443.71 is: 530,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,548.39 : 868,563.57 = 384,443.71 : x
  2. Step 2: Convert to fraction form
    629,548.39/868,563.57 = 384,443.71/x
  3. Step 3: Cross multiply
    629,548.39x = 868,563.57 × 384,443.71
  4. Step 4: Simplify right side
    629,548.39x = 333,913,801,221.65
  5. Step 5: Solve for x
    x = 333,913,801,221.65/629,548.39
  6. Step 6: Final answer
    x = 530,402.12

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Double scale
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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.