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Finding the Fourth Proportional to 440,196.64, 606,111.16 and 343,789.92

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Solution

The fourth proportional to 440,196.64, 606,111.16 and 343,789.92 is: 473,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,196.64 : 606,111.16 = 343,789.92 : x
  2. Step 2: Convert to fraction form
    440,196.64/606,111.16 = 343,789.92/x
  3. Step 3: Cross multiply
    440,196.64x = 606,111.16 × 343,789.92
  4. Step 4: Simplify right side
    440,196.64x = 208,374,907,207.51
  5. Step 5: Solve for x
    x = 208,374,907,207.51/440,196.64
  6. Step 6: Final answer
    x = 473,367.78

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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.