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Finding the Fourth Proportional to 325,442.20, 487,212.90 and 232,130.20

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Solution

The fourth proportional to 325,442.20, 487,212.90 and 232,130.20 is: 347,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,442.20 : 487,212.90 = 232,130.20 : x
  2. Step 2: Convert to fraction form
    325,442.20/487,212.90 = 232,130.20/x
  3. Step 3: Cross multiply
    325,442.20x = 487,212.90 × 232,130.20
  4. Step 4: Simplify right side
    325,442.20x = 113,096,827,919.58
  5. Step 5: Solve for x
    x = 113,096,827,919.58/325,442.20
  6. Step 6: Final answer
    x = 347,517.40

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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.