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Finding the Fourth Proportional to 440,197.64, 606,112.54 and 343,790.92

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Solution

The fourth proportional to 440,197.64, 606,112.54 and 343,790.92 is: 473,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,197.64 : 606,112.54 = 343,790.92 : x
  2. Step 2: Convert to fraction form
    440,197.64/606,112.54 = 343,790.92/x
  3. Step 3: Cross multiply
    440,197.64x = 606,112.54 × 343,790.92
  4. Step 4: Simplify right side
    440,197.64x = 208,375,987,750.14
  5. Step 5: Solve for x
    x = 208,375,987,750.14/440,197.64
  6. Step 6: Final answer
    x = 473,369.16

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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.