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Finding the Fourth Proportional to 1,196,661.68, 1,794,978.64 and 343,754.24

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Solution

The fourth proportional to 1,196,661.68, 1,794,978.64 and 343,754.24 is: 515,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,661.68 : 1,794,978.64 = 343,754.24 : x
  2. Step 2: Convert to fraction form
    1,196,661.68/1,794,978.64 = 343,754.24/x
  3. Step 3: Cross multiply
    1,196,661.68x = 1,794,978.64 × 343,754.24
  4. Step 4: Simplify right side
    1,196,661.68x = 617,031,518,209.43
  5. Step 5: Solve for x
    x = 617,031,518,209.43/1,196,661.68
  6. Step 6: Final answer
    x = 515,627.37

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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.