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Finding the Fourth Proportional to 339,416.58, 509,335.11 and 197,328.73

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Solution

The fourth proportional to 339,416.58, 509,335.11 and 197,328.73 is: 296,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,416.58 : 509,335.11 = 197,328.73 : x
  2. Step 2: Convert to fraction form
    339,416.58/509,335.11 = 197,328.73/x
  3. Step 3: Cross multiply
    339,416.58x = 509,335.11 × 197,328.73
  4. Step 4: Simplify right side
    339,416.58x = 100,506,447,987.37
  5. Step 5: Solve for x
    x = 100,506,447,987.37/339,416.58
  6. Step 6: Final answer
    x = 296,115.32

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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.