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Finding the Fourth Proportional to 396,117.95, 546,712.64 and 235,061.80

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Solution

The fourth proportional to 396,117.95, 546,712.64 and 235,061.80 is: 324,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,117.95 : 546,712.64 = 235,061.80 : x
  2. Step 2: Convert to fraction form
    396,117.95/546,712.64 = 235,061.80/x
  3. Step 3: Cross multiply
    396,117.95x = 546,712.64 × 235,061.80
  4. Step 4: Simplify right side
    396,117.95x = 128,511,255,580.54
  5. Step 5: Solve for x
    x = 128,511,255,580.54/396,117.95
  6. Step 6: Final answer
    x = 324,426.75

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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.