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Finding the Fourth Proportional to 663,460.80, 995,320.80 and 264,033.60

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Solution

The fourth proportional to 663,460.80, 995,320.80 and 264,033.60 is: 396,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,460.80 : 995,320.80 = 264,033.60 : x
  2. Step 2: Convert to fraction form
    663,460.80/995,320.80 = 264,033.60/x
  3. Step 3: Cross multiply
    663,460.80x = 995,320.80 × 264,033.60
  4. Step 4: Simplify right side
    663,460.80x = 262,798,133,978.88
  5. Step 5: Solve for x
    x = 262,798,133,978.88/663,460.80
  6. Step 6: Final answer
    x = 396,101.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.