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Finding the Fourth Proportional to 511,222.73, 705,490.17 and 296,490.11

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Solution

The fourth proportional to 511,222.73, 705,490.17 and 296,490.11 is: 409,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,222.73 : 705,490.17 = 296,490.11 : x
  2. Step 2: Convert to fraction form
    511,222.73/705,490.17 = 296,490.11/x
  3. Step 3: Cross multiply
    511,222.73x = 705,490.17 × 296,490.11
  4. Step 4: Simplify right side
    511,222.73x = 209,170,858,107.22
  5. Step 5: Solve for x
    x = 209,170,858,107.22/511,222.73
  6. Step 6: Final answer
    x = 409,157.98

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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.