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Finding the Fourth Proportional to 338,990.85, 467,805.92 and 186,031.53

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Solution

The fourth proportional to 338,990.85, 467,805.92 and 186,031.53 is: 256,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,990.85 : 467,805.92 = 186,031.53 : x
  2. Step 2: Convert to fraction form
    338,990.85/467,805.92 = 186,031.53/x
  3. Step 3: Cross multiply
    338,990.85x = 467,805.92 × 186,031.53
  4. Step 4: Simplify right side
    338,990.85x = 87,026,650,110.50
  5. Step 5: Solve for x
    x = 87,026,650,110.50/338,990.85
  6. Step 6: Final answer
    x = 256,722.71

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1.5x scale

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.