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Finding the Fourth Proportional to 325,537.40, 488,142.07 and 192,458.45

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Solution

The fourth proportional to 325,537.40, 488,142.07 and 192,458.45 is: 288,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,537.40 : 488,142.07 = 192,458.45 : x
  2. Step 2: Convert to fraction form
    325,537.40/488,142.07 = 192,458.45/x
  3. Step 3: Cross multiply
    325,537.40x = 488,142.07 × 192,458.45
  4. Step 4: Simplify right side
    325,537.40x = 93,947,066,171.99
  5. Step 5: Solve for x
    x = 93,947,066,171.99/325,537.40
  6. Step 6: Final answer
    x = 288,590.70

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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.