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Finding the Fourth Proportional to 353,889.20, 530,833.80 and 188,001.20

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Solution

The fourth proportional to 353,889.20, 530,833.80 and 188,001.20 is: 282,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,889.20 : 530,833.80 = 188,001.20 : x
  2. Step 2: Convert to fraction form
    353,889.20/530,833.80 = 188,001.20/x
  3. Step 3: Cross multiply
    353,889.20x = 530,833.80 × 188,001.20
  4. Step 4: Simplify right side
    353,889.20x = 99,797,391,400.56
  5. Step 5: Solve for x
    x = 99,797,391,400.56/353,889.20
  6. Step 6: Final answer
    x = 282,001.80

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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.