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Finding the Fourth Proportional to 662,125.50, 913,670.01 and 371,670.57

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Solution

The fourth proportional to 662,125.50, 913,670.01 and 371,670.57 is: 512,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,125.50 : 913,670.01 = 371,670.57 : x
  2. Step 2: Convert to fraction form
    662,125.50/913,670.01 = 371,670.57/x
  3. Step 3: Cross multiply
    662,125.50x = 913,670.01 × 371,670.57
  4. Step 4: Simplify right side
    662,125.50x = 339,584,253,408.61
  5. Step 5: Solve for x
    x = 339,584,253,408.61/662,125.50
  6. Step 6: Final answer
    x = 512,869.92

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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.