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Finding the Fourth Proportional to 370,859.72, 511,700.56 and 250,224.80

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Solution

The fourth proportional to 370,859.72, 511,700.56 and 250,224.80 is: 345,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,859.72 : 511,700.56 = 250,224.80 : x
  2. Step 2: Convert to fraction form
    370,859.72/511,700.56 = 250,224.80/x
  3. Step 3: Cross multiply
    370,859.72x = 511,700.56 × 250,224.80
  4. Step 4: Simplify right side
    370,859.72x = 128,040,167,101.82
  5. Step 5: Solve for x
    x = 128,040,167,101.82/370,859.72
  6. Step 6: Final answer
    x = 345,252.29

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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.