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Finding the Fourth Proportional to 692,649.24, 955,846.66 and 386,730.32

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Solution

The fourth proportional to 692,649.24, 955,846.66 and 386,730.32 is: 533,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,649.24 : 955,846.66 = 386,730.32 : x
  2. Step 2: Convert to fraction form
    692,649.24/955,846.66 = 386,730.32/x
  3. Step 3: Cross multiply
    692,649.24x = 955,846.66 × 386,730.32
  4. Step 4: Simplify right side
    692,649.24x = 369,654,884,692.73
  5. Step 5: Solve for x
    x = 369,654,884,692.73/692,649.24
  6. Step 6: Final answer
    x = 533,682.65

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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.