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Finding the Fourth Proportional to 635,940.74, 877,647.12 and 364,094.18

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Solution

The fourth proportional to 635,940.74, 877,647.12 and 364,094.18 is: 502,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,940.74 : 877,647.12 = 364,094.18 : x
  2. Step 2: Convert to fraction form
    635,940.74/877,647.12 = 364,094.18/x
  3. Step 3: Cross multiply
    635,940.74x = 877,647.12 × 364,094.18
  4. Step 4: Simplify right side
    635,940.74x = 319,546,208,485.76
  5. Step 5: Solve for x
    x = 319,546,208,485.76/635,940.74
  6. Step 6: Final answer
    x = 502,477.96

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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.