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Finding the Fourth Proportional to 539,763.10, 809,644.65 and 165,786.10

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Solution

The fourth proportional to 539,763.10, 809,644.65 and 165,786.10 is: 248,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,763.10 : 809,644.65 = 165,786.10 : x
  2. Step 2: Convert to fraction form
    539,763.10/809,644.65 = 165,786.10/x
  3. Step 3: Cross multiply
    539,763.10x = 809,644.65 × 165,786.10
  4. Step 4: Simplify right side
    539,763.10x = 134,227,828,909.37
  5. Step 5: Solve for x
    x = 134,227,828,909.37/539,763.10
  6. Step 6: Final answer
    x = 248,679.15

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Double scale
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Similar ratio
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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.