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Finding the Fourth Proportional to 643,167.37, 887,548.62 and 356,714.11

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Solution

The fourth proportional to 643,167.37, 887,548.62 and 356,714.11 is: 492,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,167.37 : 887,548.62 = 356,714.11 : x
  2. Step 2: Convert to fraction form
    643,167.37/887,548.62 = 356,714.11/x
  3. Step 3: Cross multiply
    643,167.37x = 887,548.62 × 356,714.11
  4. Step 4: Simplify right side
    643,167.37x = 316,601,116,065.03
  5. Step 5: Solve for x
    x = 316,601,116,065.03/643,167.37
  6. Step 6: Final answer
    x = 492,253.08

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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.