Home / 511,381.20-705,549.60-296,478.36

Finding the Fourth Proportional to 511,381.20, 705,549.60 and 296,478.36

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Solution

The fourth proportional to 511,381.20, 705,549.60 and 296,478.36 is: 409,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,381.20 : 705,549.60 = 296,478.36 : x
  2. Step 2: Convert to fraction form
    511,381.20/705,549.60 = 296,478.36/x
  3. Step 3: Cross multiply
    511,381.20x = 705,549.60 × 296,478.36
  4. Step 4: Simplify right side
    511,381.20x = 209,180,188,306.66
  5. Step 5: Solve for x
    x = 209,180,188,306.66/511,381.20
  6. Step 6: Final answer
    x = 409,049.43

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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.