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Finding the Fourth Proportional to 635,626.64, 877,171.19 and 345,241.01

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Solution

The fourth proportional to 635,626.64, 877,171.19 and 345,241.01 is: 476,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,626.64 : 877,171.19 = 345,241.01 : x
  2. Step 2: Convert to fraction form
    635,626.64/877,171.19 = 345,241.01/x
  3. Step 3: Cross multiply
    635,626.64x = 877,171.19 × 345,241.01
  4. Step 4: Simplify right side
    635,626.64x = 302,835,468,045.23
  5. Step 5: Solve for x
    x = 302,835,468,045.23/635,626.64
  6. Step 6: Final answer
    x = 476,436.08

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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.