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Finding the Fourth Proportional to 662,129.94, 913,676.07 and 371,674.98

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Solution

The fourth proportional to 662,129.94, 913,676.07 and 371,674.98 is: 512,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,129.94 : 913,676.07 = 371,674.98 : x
  2. Step 2: Convert to fraction form
    662,129.94/913,676.07 = 371,674.98/x
  3. Step 3: Cross multiply
    662,129.94x = 913,676.07 × 371,674.98
  4. Step 4: Simplify right side
    662,129.94x = 339,590,535,043.73
  5. Step 5: Solve for x
    x = 339,590,535,043.73/662,129.94
  6. Step 6: Final answer
    x = 512,875.97

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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.