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Finding the Fourth Proportional to 662,099.67, 913,575.51 and 403,917.03

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Solution

The fourth proportional to 662,099.67, 913,575.51 and 403,917.03 is: 557,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,099.67 : 913,575.51 = 403,917.03 : x
  2. Step 2: Convert to fraction form
    662,099.67/913,575.51 = 403,917.03/x
  3. Step 3: Cross multiply
    662,099.67x = 913,575.51 × 403,917.03
  4. Step 4: Simplify right side
    662,099.67x = 369,008,706,679.94
  5. Step 5: Solve for x
    x = 369,008,706,679.94/662,099.67
  6. Step 6: Final answer
    x = 557,331.05

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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.