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Finding the Fourth Proportional to 572,757.21, 790,358.58 and 331,055.37

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Solution

The fourth proportional to 572,757.21, 790,358.58 and 331,055.37 is: 456,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,757.21 : 790,358.58 = 331,055.37 : x
  2. Step 2: Convert to fraction form
    572,757.21/790,358.58 = 331,055.37/x
  3. Step 3: Cross multiply
    572,757.21x = 790,358.58 × 331,055.37
  4. Step 4: Simplify right side
    572,757.21x = 261,652,452,134.58
  5. Step 5: Solve for x
    x = 261,652,452,134.58/572,757.21
  6. Step 6: Final answer
    x = 456,829.61

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Double scale
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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.