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Finding the Fourth Proportional to 662,768.92, 914,631.78 and 376,296.76

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Solution

The fourth proportional to 662,768.92, 914,631.78 and 376,296.76 is: 519,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,768.92 : 914,631.78 = 376,296.76 : x
  2. Step 2: Convert to fraction form
    662,768.92/914,631.78 = 376,296.76/x
  3. Step 3: Cross multiply
    662,768.92x = 914,631.78 × 376,296.76
  4. Step 4: Simplify right side
    662,768.92x = 344,172,975,407.03
  5. Step 5: Solve for x
    x = 344,172,975,407.03/662,768.92
  6. Step 6: Final answer
    x = 519,295.59

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Double scale
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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.