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Finding the Fourth Proportional to 656,377.16, 986,620.92 and 433,171.94

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Solution

The fourth proportional to 656,377.16, 986,620.92 and 433,171.94 is: 651,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,377.16 : 986,620.92 = 433,171.94 : x
  2. Step 2: Convert to fraction form
    656,377.16/986,620.92 = 433,171.94/x
  3. Step 3: Cross multiply
    656,377.16x = 986,620.92 × 433,171.94
  4. Step 4: Simplify right side
    656,377.16x = 427,376,497,960.99
  5. Step 5: Solve for x
    x = 427,376,497,960.99/656,377.16
  6. Step 6: Final answer
    x = 651,114.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.