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Finding the Fourth Proportional to 526,157.56, 725,919.78 and 299,642.68

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Solution

The fourth proportional to 526,157.56, 725,919.78 and 299,642.68 is: 413,405.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,157.56 : 725,919.78 = 299,642.68 : x
  2. Step 2: Convert to fraction form
    526,157.56/725,919.78 = 299,642.68/x
  3. Step 3: Cross multiply
    526,157.56x = 725,919.78 × 299,642.68
  4. Step 4: Simplify right side
    526,157.56x = 217,516,548,344.21
  5. Step 5: Solve for x
    x = 217,516,548,344.21/526,157.56
  6. Step 6: Final answer
    x = 413,405.73

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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.