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Finding the Fourth Proportional to 655,955.02, 984,011.34 and 620,082.74

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Solution

The fourth proportional to 655,955.02, 984,011.34 and 620,082.74 is: 930,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,955.02 : 984,011.34 = 620,082.74 : x
  2. Step 2: Convert to fraction form
    655,955.02/984,011.34 = 620,082.74/x
  3. Step 3: Cross multiply
    655,955.02x = 984,011.34 × 620,082.74
  4. Step 4: Simplify right side
    655,955.02x = 610,168,447,898.27
  5. Step 5: Solve for x
    x = 610,168,447,898.27/655,955.02
  6. Step 6: Final answer
    x = 930,198.62

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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.