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Finding the Fourth Proportional to 892,602.38, 1,231,786.80 and 484,700.58

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Solution

The fourth proportional to 892,602.38, 1,231,786.80 and 484,700.58 is: 668,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,602.38 : 1,231,786.80 = 484,700.58 : x
  2. Step 2: Convert to fraction form
    892,602.38/1,231,786.80 = 484,700.58/x
  3. Step 3: Cross multiply
    892,602.38x = 1,231,786.80 × 484,700.58
  4. Step 4: Simplify right side
    892,602.38x = 597,047,776,396.34
  5. Step 5: Solve for x
    x = 597,047,776,396.34/892,602.38
  6. Step 6: Final answer
    x = 668,884.36

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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.