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Finding the Fourth Proportional to 806,706.09, 1,113,212.12 and 444,059.10

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Solution

The fourth proportional to 806,706.09, 1,113,212.12 and 444,059.10 is: 612,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,706.09 : 1,113,212.12 = 444,059.10 : x
  2. Step 2: Convert to fraction form
    806,706.09/1,113,212.12 = 444,059.10/x
  3. Step 3: Cross multiply
    806,706.09x = 1,113,212.12 × 444,059.10
  4. Step 4: Simplify right side
    806,706.09x = 494,331,969,896.00
  5. Step 5: Solve for x
    x = 494,331,969,896.00/806,706.09
  6. Step 6: Final answer
    x = 612,778.28

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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.