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Finding the Fourth Proportional to 577,886.40, 798,245.15 and 443,579.90

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Solution

The fourth proportional to 577,886.40, 798,245.15 and 443,579.90 is: 612,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,886.40 : 798,245.15 = 443,579.90 : x
  2. Step 2: Convert to fraction form
    577,886.40/798,245.15 = 443,579.90/x
  3. Step 3: Cross multiply
    577,886.40x = 798,245.15 × 443,579.90
  4. Step 4: Simplify right side
    577,886.40x = 354,085,497,603.36
  5. Step 5: Solve for x
    x = 354,085,497,603.36/577,886.40
  6. Step 6: Final answer
    x = 612,725.09

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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.