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Finding the Fourth Proportional to 906,313, 1,359,381.18 and 275,232.28

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Solution

The fourth proportional to 906,313, 1,359,381.18 and 275,232.28 is: 412,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,313 : 1,359,381.18 = 275,232.28 : x
  2. Step 2: Convert to fraction form
    906,313/1,359,381.18 = 275,232.28/x
  3. Step 3: Cross multiply
    906,313x = 1,359,381.18 × 275,232.28
  4. Step 4: Simplify right side
    906,313x = 374,145,581,560.49
  5. Step 5: Solve for x
    x = 374,145,581,560.49/906,313
  6. Step 6: Final answer
    x = 412,821.60

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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.