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Finding the Fourth Proportional to 641,336.70, 885,567.75 and 412,007.82

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Solution

The fourth proportional to 641,336.70, 885,567.75 and 412,007.82 is: 568,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,336.70 : 885,567.75 = 412,007.82 : x
  2. Step 2: Convert to fraction form
    641,336.70/885,567.75 = 412,007.82/x
  3. Step 3: Cross multiply
    641,336.70x = 885,567.75 × 412,007.82
  4. Step 4: Simplify right side
    641,336.70x = 364,860,838,139.81
  5. Step 5: Solve for x
    x = 364,860,838,139.81/641,336.70
  6. Step 6: Final answer
    x = 568,906.84

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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.