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Finding the Fourth Proportional to 504,682.82, 696,342.56 and 286,874.36

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Solution

The fourth proportional to 504,682.82, 696,342.56 and 286,874.36 is: 395,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,682.82 : 696,342.56 = 286,874.36 : x
  2. Step 2: Convert to fraction form
    504,682.82/696,342.56 = 286,874.36/x
  3. Step 3: Cross multiply
    504,682.82x = 696,342.56 × 286,874.36
  4. Step 4: Simplify right side
    504,682.82x = 199,762,824,806.39
  5. Step 5: Solve for x
    x = 199,762,824,806.39/504,682.82
  6. Step 6: Final answer
    x = 395,818.56

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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.