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Finding the Fourth Proportional to 353,499.60, 487,825.33 and 192,351.87

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Solution

The fourth proportional to 353,499.60, 487,825.33 and 192,351.87 is: 265,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,499.60 : 487,825.33 = 192,351.87 : x
  2. Step 2: Convert to fraction form
    353,499.60/487,825.33 = 192,351.87/x
  3. Step 3: Cross multiply
    353,499.60x = 487,825.33 × 192,351.87
  4. Step 4: Simplify right side
    353,499.60x = 93,834,114,458.87
  5. Step 5: Solve for x
    x = 93,834,114,458.87/353,499.60
  6. Step 6: Final answer
    x = 265,443.34

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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.