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Finding the Fourth Proportional to 303,612.92, 419,022.72 and 176,288.51

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Solution

The fourth proportional to 303,612.92, 419,022.72 and 176,288.51 is: 243,299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,612.92 : 419,022.72 = 176,288.51 : x
  2. Step 2: Convert to fraction form
    303,612.92/419,022.72 = 176,288.51/x
  3. Step 3: Cross multiply
    303,612.92x = 419,022.72 × 176,288.51
  4. Step 4: Simplify right side
    303,612.92x = 73,868,888,869.83
  5. Step 5: Solve for x
    x = 73,868,888,869.83/303,612.92
  6. Step 6: Final answer
    x = 243,299.56

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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.