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Finding the Fourth Proportional to 270,524.10, 405,786.15 and 130,248.90

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Solution

The fourth proportional to 270,524.10, 405,786.15 and 130,248.90 is: 195,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,524.10 : 405,786.15 = 130,248.90 : x
  2. Step 2: Convert to fraction form
    270,524.10/405,786.15 = 130,248.90/x
  3. Step 3: Cross multiply
    270,524.10x = 405,786.15 × 130,248.90
  4. Step 4: Simplify right side
    270,524.10x = 52,853,199,672.74
  5. Step 5: Solve for x
    x = 52,853,199,672.74/270,524.10
  6. Step 6: Final answer
    x = 195,373.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.