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Finding the Fourth Proportional to 544,021.20, 816,108.60 and 170,005.20

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Solution

The fourth proportional to 544,021.20, 816,108.60 and 170,005.20 is: 255,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,021.20 : 816,108.60 = 170,005.20 : x
  2. Step 2: Convert to fraction form
    544,021.20/816,108.60 = 170,005.20/x
  3. Step 3: Cross multiply
    544,021.20x = 816,108.60 × 170,005.20
  4. Step 4: Simplify right side
    544,021.20x = 138,742,705,764.72
  5. Step 5: Solve for x
    x = 138,742,705,764.72/544,021.20
  6. Step 6: Final answer
    x = 255,031.80

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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.