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Finding the Fourth Proportional to 322,077.80, 483,116.70 and 210,103.40

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Solution

The fourth proportional to 322,077.80, 483,116.70 and 210,103.40 is: 315,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,077.80 : 483,116.70 = 210,103.40 : x
  2. Step 2: Convert to fraction form
    322,077.80/483,116.70 = 210,103.40/x
  3. Step 3: Cross multiply
    322,077.80x = 483,116.70 × 210,103.40
  4. Step 4: Simplify right side
    322,077.80x = 101,504,461,266.78
  5. Step 5: Solve for x
    x = 101,504,461,266.78/322,077.80
  6. Step 6: Final answer
    x = 315,155.10

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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.