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Finding the Fourth Proportional to 343,996.74, 515,599.02 and 133,456.68

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Solution

The fourth proportional to 343,996.74, 515,599.02 and 133,456.68 is: 200,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,996.74 : 515,599.02 = 133,456.68 : x
  2. Step 2: Convert to fraction form
    343,996.74/515,599.02 = 133,456.68/x
  3. Step 3: Cross multiply
    343,996.74x = 515,599.02 × 133,456.68
  4. Step 4: Simplify right side
    343,996.74x = 68,810,133,420.45
  5. Step 5: Solve for x
    x = 68,810,133,420.45/343,996.74
  6. Step 6: Final answer
    x = 200,031.35

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1.5x scale

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.