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Finding the Fourth Proportional to 235,616.19, 325,346.54 and 218,520.87

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Solution

The fourth proportional to 235,616.19, 325,346.54 and 218,520.87 is: 301,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,616.19 : 325,346.54 = 218,520.87 : x
  2. Step 2: Convert to fraction form
    235,616.19/325,346.54 = 218,520.87/x
  3. Step 3: Cross multiply
    235,616.19x = 325,346.54 × 218,520.87
  4. Step 4: Simplify right side
    235,616.19x = 71,095,007,879.69
  5. Step 5: Solve for x
    x = 71,095,007,879.69/235,616.19
  6. Step 6: Final answer
    x = 301,740.76

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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.