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Finding the Fourth Proportional to 646,796.66, 892,101.23 and 474,656.47

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Solution

The fourth proportional to 646,796.66, 892,101.23 and 474,656.47 is: 654,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,796.66 : 892,101.23 = 474,656.47 : x
  2. Step 2: Convert to fraction form
    646,796.66/892,101.23 = 474,656.47/x
  3. Step 3: Cross multiply
    646,796.66x = 892,101.23 × 474,656.47
  4. Step 4: Simplify right side
    646,796.66x = 423,441,620,714.46
  5. Step 5: Solve for x
    x = 423,441,620,714.46/646,796.66
  6. Step 6: Final answer
    x = 654,675.03

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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.