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Finding the Fourth Proportional to 646,810.45, 886,133.51 and 622,568.49

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Solution

The fourth proportional to 646,810.45, 886,133.51 and 622,568.49 is: 852,921.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,810.45 : 886,133.51 = 622,568.49 : x
  2. Step 2: Convert to fraction form
    646,810.45/886,133.51 = 622,568.49/x
  3. Step 3: Cross multiply
    646,810.45x = 886,133.51 × 622,568.49
  4. Step 4: Simplify right side
    646,810.45x = 551,678,801,259.10
  5. Step 5: Solve for x
    x = 551,678,801,259.10/646,810.45
  6. Step 6: Final answer
    x = 852,921.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.