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Finding the Fourth Proportional to 591,889.80, 887,834.70 and 197,905.80

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Solution

The fourth proportional to 591,889.80, 887,834.70 and 197,905.80 is: 296,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,889.80 : 887,834.70 = 197,905.80 : x
  2. Step 2: Convert to fraction form
    591,889.80/887,834.70 = 197,905.80/x
  3. Step 3: Cross multiply
    591,889.80x = 887,834.70 × 197,905.80
  4. Step 4: Simplify right side
    591,889.80x = 175,707,636,571.26
  5. Step 5: Solve for x
    x = 175,707,636,571.26/591,889.80
  6. Step 6: Final answer
    x = 296,858.70

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Double scale
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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.