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Finding the Fourth Proportional to 635,699.69, 877,341.71 and 381,042.41

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Solution

The fourth proportional to 635,699.69, 877,341.71 and 381,042.41 is: 525,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,699.69 : 877,341.71 = 381,042.41 : x
  2. Step 2: Convert to fraction form
    635,699.69/877,341.71 = 381,042.41/x
  3. Step 3: Cross multiply
    635,699.69x = 877,341.71 × 381,042.41
  4. Step 4: Simplify right side
    635,699.69x = 334,304,396,137.82
  5. Step 5: Solve for x
    x = 334,304,396,137.82/635,699.69
  6. Step 6: Final answer
    x = 525,884.16

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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.