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Finding the Fourth Proportional to 511,237.08, 705,512.12 and 281,803.37

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Solution

The fourth proportional to 511,237.08, 705,512.12 and 281,803.37 is: 388,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,237.08 : 705,512.12 = 281,803.37 : x
  2. Step 2: Convert to fraction form
    511,237.08/705,512.12 = 281,803.37/x
  3. Step 3: Cross multiply
    511,237.08x = 705,512.12 × 281,803.37
  4. Step 4: Simplify right side
    511,237.08x = 198,815,688,055.27
  5. Step 5: Solve for x
    x = 198,815,688,055.27/511,237.08
  6. Step 6: Final answer
    x = 388,891.37

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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.