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Finding the Fourth Proportional to 353,437.56, 487,738.47 and 192,288.93

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Solution

The fourth proportional to 353,437.56, 487,738.47 and 192,288.93 is: 265,355.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,437.56 : 487,738.47 = 192,288.93 : x
  2. Step 2: Convert to fraction form
    353,437.56/487,738.47 = 192,288.93/x
  3. Step 3: Cross multiply
    353,437.56x = 487,738.47 × 192,288.93
  4. Step 4: Simplify right side
    353,437.56x = 93,786,708,516.14
  5. Step 5: Solve for x
    x = 93,786,708,516.14/353,437.56
  6. Step 6: Final answer
    x = 265,355.81

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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.