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Finding the Fourth Proportional to 620,996.84, 930,715.90 and 265,593

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Solution

The fourth proportional to 620,996.84, 930,715.90 and 265,593 is: 398,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,996.84 : 930,715.90 = 265,593 : x
  2. Step 2: Convert to fraction form
    620,996.84/930,715.90 = 265,593/x
  3. Step 3: Cross multiply
    620,996.84x = 930,715.90 × 265,593
  4. Step 4: Simplify right side
    620,996.84x = 247,191,628,028.70
  5. Step 5: Solve for x
    x = 247,191,628,028.70/620,996.84
  6. Step 6: Final answer
    x = 398,056.18

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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.