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Finding the Fourth Proportional to 490,593.70, 735,890.55 and 153,660.70

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Solution

The fourth proportional to 490,593.70, 735,890.55 and 153,660.70 is: 230,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,593.70 : 735,890.55 = 153,660.70 : x
  2. Step 2: Convert to fraction form
    490,593.70/735,890.55 = 153,660.70/x
  3. Step 3: Cross multiply
    490,593.70x = 735,890.55 × 153,660.70
  4. Step 4: Simplify right side
    490,593.70x = 113,077,457,036.39
  5. Step 5: Solve for x
    x = 113,077,457,036.39/490,593.70
  6. Step 6: Final answer
    x = 230,491.05

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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.