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Finding the Fourth Proportional to 683,633.92, 943,253.76 and 396,984.32

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Solution

The fourth proportional to 683,633.92, 943,253.76 and 396,984.32 is: 547,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,633.92 : 943,253.76 = 396,984.32 : x
  2. Step 2: Convert to fraction form
    683,633.92/943,253.76 = 396,984.32/x
  3. Step 3: Cross multiply
    683,633.92x = 943,253.76 × 396,984.32
  4. Step 4: Simplify right side
    683,633.92x = 374,456,952,501.04
  5. Step 5: Solve for x
    x = 374,456,952,501.04/683,633.92
  6. Step 6: Final answer
    x = 547,744.84

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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.