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Finding the Fourth Proportional to 322,603.40, 483,905.10 and 216,849.80

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Solution

The fourth proportional to 322,603.40, 483,905.10 and 216,849.80 is: 325,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,603.40 : 483,905.10 = 216,849.80 : x
  2. Step 2: Convert to fraction form
    322,603.40/483,905.10 = 216,849.80/x
  3. Step 3: Cross multiply
    322,603.40x = 483,905.10 × 216,849.80
  4. Step 4: Simplify right side
    322,603.40x = 104,934,724,153.98
  5. Step 5: Solve for x
    x = 104,934,724,153.98/322,603.40
  6. Step 6: Final answer
    x = 325,274.70

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Similar ratio
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1.5x scale

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.