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Finding the Fourth Proportional to 625,572.49, 864,007.49 and 411,667.49

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Solution

The fourth proportional to 625,572.49, 864,007.49 and 411,667.49 is: 568,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,572.49 : 864,007.49 = 411,667.49 : x
  2. Step 2: Convert to fraction form
    625,572.49/864,007.49 = 411,667.49/x
  3. Step 3: Cross multiply
    625,572.49x = 864,007.49 × 411,667.49
  4. Step 4: Simplify right side
    625,572.49x = 355,683,794,749.50
  5. Step 5: Solve for x
    x = 355,683,794,749.50/625,572.49
  6. Step 6: Final answer
    x = 568,573.27

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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.