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Finding the Fourth Proportional to 662,124, 913,667.94 and 371,669.07

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Solution

The fourth proportional to 662,124, 913,667.94 and 371,669.07 is: 512,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,124 : 913,667.94 = 371,669.07 : x
  2. Step 2: Convert to fraction form
    662,124/913,667.94 = 371,669.07/x
  3. Step 3: Cross multiply
    662,124x = 913,667.94 × 371,669.07
  4. Step 4: Simplify right side
    662,124x = 339,582,113,548.62
  5. Step 5: Solve for x
    x = 339,582,113,548.62/662,124
  6. Step 6: Final answer
    x = 512,867.85

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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.