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Finding the Fourth Proportional to 635,622.98, 877,164.93 and 349,149.47

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Solution

The fourth proportional to 635,622.98, 877,164.93 and 349,149.47 is: 481,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,622.98 : 877,164.93 = 349,149.47 : x
  2. Step 2: Convert to fraction form
    635,622.98/877,164.93 = 349,149.47/x
  3. Step 3: Cross multiply
    635,622.98x = 877,164.93 × 349,149.47
  4. Step 4: Simplify right side
    635,622.98x = 306,261,666,026.26
  5. Step 5: Solve for x
    x = 306,261,666,026.26/635,622.98
  6. Step 6: Final answer
    x = 481,829.13

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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.