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Finding the Fourth Proportional to 411,135.40, 567,390.18 and 232,287.40

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Solution

The fourth proportional to 411,135.40, 567,390.18 and 232,287.40 is: 320,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,135.40 : 567,390.18 = 232,287.40 : x
  2. Step 2: Convert to fraction form
    411,135.40/567,390.18 = 232,287.40/x
  3. Step 3: Cross multiply
    411,135.40x = 567,390.18 × 232,287.40
  4. Step 4: Simplify right side
    411,135.40x = 131,797,589,697.73
  5. Step 5: Solve for x
    x = 131,797,589,697.73/411,135.40
  6. Step 6: Final answer
    x = 320,569.79

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Double scale
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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.