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Finding the Fourth Proportional to 552,578.88, 761,824.80 and 361,263.36

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Solution

The fourth proportional to 552,578.88, 761,824.80 and 361,263.36 is: 498,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,578.88 : 761,824.80 = 361,263.36 : x
  2. Step 2: Convert to fraction form
    552,578.88/761,824.80 = 361,263.36/x
  3. Step 3: Cross multiply
    552,578.88x = 761,824.80 × 361,263.36
  4. Step 4: Simplify right side
    552,578.88x = 275,219,386,979.33
  5. Step 5: Solve for x
    x = 275,219,386,979.33/552,578.88
  6. Step 6: Final answer
    x = 498,063.53

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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.