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Finding the Fourth Proportional to 893,887.56, 1,233,564.72 and 491,479.56

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Solution

The fourth proportional to 893,887.56, 1,233,564.72 and 491,479.56 is: 678,241.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,887.56 : 1,233,564.72 = 491,479.56 : x
  2. Step 2: Convert to fraction form
    893,887.56/1,233,564.72 = 491,479.56/x
  3. Step 3: Cross multiply
    893,887.56x = 1,233,564.72 × 491,479.56
  4. Step 4: Simplify right side
    893,887.56x = 606,271,845,817.12
  5. Step 5: Solve for x
    x = 606,271,845,817.12/893,887.56
  6. Step 6: Final answer
    x = 678,241.73

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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.