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Finding the Fourth Proportional to 694,274.47, 957,713.20 and 403,853.32

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Solution

The fourth proportional to 694,274.47, 957,713.20 and 403,853.32 is: 557,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,274.47 : 957,713.20 = 403,853.32 : x
  2. Step 2: Convert to fraction form
    694,274.47/957,713.20 = 403,853.32/x
  3. Step 3: Cross multiply
    694,274.47x = 957,713.20 × 403,853.32
  4. Step 4: Simplify right side
    694,274.47x = 386,775,655,427.82
  5. Step 5: Solve for x
    x = 386,775,655,427.82/694,274.47
  6. Step 6: Final answer
    x = 557,093.30

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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.