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Finding the Fourth Proportional to 479,218.80, 718,828.20 and 146,794.80

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Solution

The fourth proportional to 479,218.80, 718,828.20 and 146,794.80 is: 220,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,218.80 : 718,828.20 = 146,794.80 : x
  2. Step 2: Convert to fraction form
    479,218.80/718,828.20 = 146,794.80/x
  3. Step 3: Cross multiply
    479,218.80x = 718,828.20 × 146,794.80
  4. Step 4: Simplify right side
    479,218.80x = 105,520,241,853.36
  5. Step 5: Solve for x
    x = 105,520,241,853.36/479,218.80
  6. Step 6: Final answer
    x = 220,192.20

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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.