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Finding the Fourth Proportional to 510,515.48, 765,773.04 and 136,528.76

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Solution

The fourth proportional to 510,515.48, 765,773.04 and 136,528.76 is: 204,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,515.48 : 765,773.04 = 136,528.76 : x
  2. Step 2: Convert to fraction form
    510,515.48/765,773.04 = 136,528.76/x
  3. Step 3: Cross multiply
    510,515.48x = 765,773.04 × 136,528.76
  4. Step 4: Simplify right side
    510,515.48x = 104,550,043,592.63
  5. Step 5: Solve for x
    x = 104,550,043,592.63/510,515.48
  6. Step 6: Final answer
    x = 204,793.09

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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.