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Finding the Fourth Proportional to 646,751.96, 886,054.41 and 622,510.20

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Solution

The fourth proportional to 646,751.96, 886,054.41 and 622,510.20 is: 852,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,751.96 : 886,054.41 = 622,510.20 : x
  2. Step 2: Convert to fraction form
    646,751.96/886,054.41 = 622,510.20/x
  3. Step 3: Cross multiply
    646,751.96x = 886,054.41 × 622,510.20
  4. Step 4: Simplify right side
    646,751.96x = 551,577,907,979.98
  5. Step 5: Solve for x
    x = 551,577,907,979.98/646,751.96
  6. Step 6: Final answer
    x = 852,843.04

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Double scale
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1.5x scale

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.