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Finding the Fourth Proportional to 343,358.89, 473,836.29 and 190,407.88

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Solution

The fourth proportional to 343,358.89, 473,836.29 and 190,407.88 is: 262,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,358.89 : 473,836.29 = 190,407.88 : x
  2. Step 2: Convert to fraction form
    343,358.89/473,836.29 = 190,407.88/x
  3. Step 3: Cross multiply
    343,358.89x = 473,836.29 × 190,407.88
  4. Step 4: Simplify right side
    343,358.89x = 90,222,163,445.97
  5. Step 5: Solve for x
    x = 90,222,163,445.97/343,358.89
  6. Step 6: Final answer
    x = 262,763.44

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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.