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Finding the Fourth Proportional to 487,544.66, 672,936.82 and 296,692.46

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Solution

The fourth proportional to 487,544.66, 672,936.82 and 296,692.46 is: 409,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,544.66 : 672,936.82 = 296,692.46 : x
  2. Step 2: Convert to fraction form
    487,544.66/672,936.82 = 296,692.46/x
  3. Step 3: Cross multiply
    487,544.66x = 672,936.82 × 296,692.46
  4. Step 4: Simplify right side
    487,544.66x = 199,655,276,443.96
  5. Step 5: Solve for x
    x = 199,655,276,443.96/487,544.66
  6. Step 6: Final answer
    x = 409,511.77

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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.