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Finding the Fourth Proportional to 674,903.80, 1,012,371.90 and 201,604.60

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Solution

The fourth proportional to 674,903.80, 1,012,371.90 and 201,604.60 is: 302,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,903.80 : 1,012,371.90 = 201,604.60 : x
  2. Step 2: Convert to fraction form
    674,903.80/1,012,371.90 = 201,604.60/x
  3. Step 3: Cross multiply
    674,903.80x = 1,012,371.90 × 201,604.60
  4. Step 4: Simplify right side
    674,903.80x = 204,098,831,950.74
  5. Step 5: Solve for x
    x = 204,098,831,950.74/674,903.80
  6. Step 6: Final answer
    x = 302,411.74

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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.