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Finding the Fourth Proportional to 571,591.49, 856,770.30 and 251,458.43

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Solution

The fourth proportional to 571,591.49, 856,770.30 and 251,458.43 is: 376,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,591.49 : 856,770.30 = 251,458.43 : x
  2. Step 2: Convert to fraction form
    571,591.49/856,770.30 = 251,458.43/x
  3. Step 3: Cross multiply
    571,591.49x = 856,770.30 × 251,458.43
  4. Step 4: Simplify right side
    571,591.49x = 215,442,110,224.78
  5. Step 5: Solve for x
    x = 215,442,110,224.78/571,591.49
  6. Step 6: Final answer
    x = 376,916.23

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Double scale
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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.