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Finding the Fourth Proportional to 1,185,192, 1,635,564.96 and 648,648

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Solution

The fourth proportional to 1,185,192, 1,635,564.96 and 648,648 is: 895,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,192 : 1,635,564.96 = 648,648 : x
  2. Step 2: Convert to fraction form
    1,185,192/1,635,564.96 = 648,648/x
  3. Step 3: Cross multiply
    1,185,192x = 1,635,564.96 × 648,648
  4. Step 4: Simplify right side
    1,185,192x = 1,060,905,940,174.08
  5. Step 5: Solve for x
    x = 1,060,905,940,174.08/1,185,192
  6. Step 6: Final answer
    x = 895,134.24

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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.