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Finding the Fourth Proportional to 646,751.88, 886,054.10 and 622,509.90

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Solution

The fourth proportional to 646,751.88, 886,054.10 and 622,509.90 is: 852,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,751.88 : 886,054.10 = 622,509.90 : x
  2. Step 2: Convert to fraction form
    646,751.88/886,054.10 = 622,509.90/x
  3. Step 3: Cross multiply
    646,751.88x = 886,054.10 × 622,509.90
  4. Step 4: Simplify right side
    646,751.88x = 551,577,441,642.77
  5. Step 5: Solve for x
    x = 551,577,441,642.77/646,751.88
  6. Step 6: Final answer
    x = 852,842.42

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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.