Home / 638,741.88-958,117.68-283,660.56

Finding the Fourth Proportional to 638,741.88, 958,117.68 and 283,660.56

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Solution

The fourth proportional to 638,741.88, 958,117.68 and 283,660.56 is: 425,493.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,741.88 : 958,117.68 = 283,660.56 : x
  2. Step 2: Convert to fraction form
    638,741.88/958,117.68 = 283,660.56/x
  3. Step 3: Cross multiply
    638,741.88x = 958,117.68 × 283,660.56
  4. Step 4: Simplify right side
    638,741.88x = 271,780,197,654.70
  5. Step 5: Solve for x
    x = 271,780,197,654.70/638,741.88
  6. Step 6: Final answer
    x = 425,493.00

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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.