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Finding the Fourth Proportional to 396,471.24, 547,300.80 and 243,534.33

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Solution

The fourth proportional to 396,471.24, 547,300.80 and 243,534.33 is: 336,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,471.24 : 547,300.80 = 243,534.33 : x
  2. Step 2: Convert to fraction form
    396,471.24/547,300.80 = 243,534.33/x
  3. Step 3: Cross multiply
    396,471.24x = 547,300.80 × 243,534.33
  4. Step 4: Simplify right side
    396,471.24x = 133,286,533,636.46
  5. Step 5: Solve for x
    x = 133,286,533,636.46/396,471.24
  6. Step 6: Final answer
    x = 336,182.10

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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.