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Finding the Fourth Proportional to 396,496.13, 546,915.69 and 235,237.01

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Solution

The fourth proportional to 396,496.13, 546,915.69 and 235,237.01 is: 324,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,496.13 : 546,915.69 = 235,237.01 : x
  2. Step 2: Convert to fraction form
    396,496.13/546,915.69 = 235,237.01/x
  3. Step 3: Cross multiply
    396,496.13x = 546,915.69 × 235,237.01
  4. Step 4: Simplify right side
    396,496.13x = 128,654,808,903.11
  5. Step 5: Solve for x
    x = 128,654,808,903.11/396,496.13
  6. Step 6: Final answer
    x = 324,479.36

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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.