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Finding the Fourth Proportional to 662,137.94, 913,687.08 and 371,683.01

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Solution

The fourth proportional to 662,137.94, 913,687.08 and 371,683.01 is: 512,887.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,137.94 : 913,687.08 = 371,683.01 : x
  2. Step 2: Convert to fraction form
    662,137.94/913,687.08 = 371,683.01/x
  3. Step 3: Cross multiply
    662,137.94x = 913,687.08 × 371,683.01
  4. Step 4: Simplify right side
    662,137.94x = 339,601,964,092.51
  5. Step 5: Solve for x
    x = 339,601,964,092.51/662,137.94
  6. Step 6: Final answer
    x = 512,887.03

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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.