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Finding the Fourth Proportional to 338,972.01, 467,780.09 and 186,012.74

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Solution

The fourth proportional to 338,972.01, 467,780.09 and 186,012.74 is: 256,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,972.01 : 467,780.09 = 186,012.74 : x
  2. Step 2: Convert to fraction form
    338,972.01/467,780.09 = 186,012.74/x
  3. Step 3: Cross multiply
    338,972.01x = 467,780.09 × 186,012.74
  4. Step 4: Simplify right side
    338,972.01x = 87,013,052,989.38
  5. Step 5: Solve for x
    x = 87,013,052,989.38/338,972.01
  6. Step 6: Final answer
    x = 256,696.87

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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.