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Finding the Fourth Proportional to 613,720.20, 846,873.36 and 341,813.48

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Solution

The fourth proportional to 613,720.20, 846,873.36 and 341,813.48 is: 471,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,720.20 : 846,873.36 = 341,813.48 : x
  2. Step 2: Convert to fraction form
    613,720.20/846,873.36 = 341,813.48/x
  3. Step 3: Cross multiply
    613,720.20x = 846,873.36 × 341,813.48
  4. Step 4: Simplify right side
    613,720.20x = 289,472,730,300.89
  5. Step 5: Solve for x
    x = 289,472,730,300.89/613,720.20
  6. Step 6: Final answer
    x = 471,668.90

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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.