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Finding the Fourth Proportional to 701,324.40, 967,838.04 and 399,511.92

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Solution

The fourth proportional to 701,324.40, 967,838.04 and 399,511.92 is: 551,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,324.40 : 967,838.04 = 399,511.92 : x
  2. Step 2: Convert to fraction form
    701,324.40/967,838.04 = 399,511.92/x
  3. Step 3: Cross multiply
    701,324.40x = 967,838.04 × 399,511.92
  4. Step 4: Simplify right side
    701,324.40x = 386,662,833,609.44
  5. Step 5: Solve for x
    x = 386,662,833,609.44/701,324.40
  6. Step 6: Final answer
    x = 551,332.36

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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.