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Finding the Fourth Proportional to 554,996.61, 765,813.21 and 325,467.30

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Solution

The fourth proportional to 554,996.61, 765,813.21 and 325,467.30 is: 449,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,996.61 : 765,813.21 = 325,467.30 : x
  2. Step 2: Convert to fraction form
    554,996.61/765,813.21 = 325,467.30/x
  3. Step 3: Cross multiply
    554,996.61x = 765,813.21 × 325,467.30
  4. Step 4: Simplify right side
    554,996.61x = 249,247,157,763.03
  5. Step 5: Solve for x
    x = 249,247,157,763.03/554,996.61
  6. Step 6: Final answer
    x = 449,096.72

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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.