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Finding the Fourth Proportional to 662,769.92, 914,633.16 and 376,297.76

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Solution

The fourth proportional to 662,769.92, 914,633.16 and 376,297.76 is: 519,296.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,769.92 : 914,633.16 = 376,297.76 : x
  2. Step 2: Convert to fraction form
    662,769.92/914,633.16 = 376,297.76/x
  3. Step 3: Cross multiply
    662,769.92x = 914,633.16 × 376,297.76
  4. Step 4: Simplify right side
    662,769.92x = 344,174,409,329.72
  5. Step 5: Solve for x
    x = 344,174,409,329.72/662,769.92
  6. Step 6: Final answer
    x = 519,296.97

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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.