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Finding the Fourth Proportional to 331,512.40, 497,268.60 and 238,891.60

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Solution

The fourth proportional to 331,512.40, 497,268.60 and 238,891.60 is: 358,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,512.40 : 497,268.60 = 238,891.60 : x
  2. Step 2: Convert to fraction form
    331,512.40/497,268.60 = 238,891.60/x
  3. Step 3: Cross multiply
    331,512.40x = 497,268.60 × 238,891.60
  4. Step 4: Simplify right side
    331,512.40x = 118,793,291,483.76
  5. Step 5: Solve for x
    x = 118,793,291,483.76/331,512.40
  6. Step 6: Final answer
    x = 358,337.40

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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.