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Finding the Fourth Proportional to 450,591.45, 621,773.99 and 269,267.28

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Solution

The fourth proportional to 450,591.45, 621,773.99 and 269,267.28 is: 371,563.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,591.45 : 621,773.99 = 269,267.28 : x
  2. Step 2: Convert to fraction form
    450,591.45/621,773.99 = 269,267.28/x
  3. Step 3: Cross multiply
    450,591.45x = 621,773.99 × 269,267.28
  4. Step 4: Simplify right side
    450,591.45x = 167,423,386,606.84
  5. Step 5: Solve for x
    x = 167,423,386,606.84/450,591.45
  6. Step 6: Final answer
    x = 371,563.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.