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Finding the Fourth Proportional to 546,748.20, 820,122.30 and 152,764.20

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Solution

The fourth proportional to 546,748.20, 820,122.30 and 152,764.20 is: 229,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,748.20 : 820,122.30 = 152,764.20 : x
  2. Step 2: Convert to fraction form
    546,748.20/820,122.30 = 152,764.20/x
  3. Step 3: Cross multiply
    546,748.20x = 820,122.30 × 152,764.20
  4. Step 4: Simplify right side
    546,748.20x = 125,285,327,061.66
  5. Step 5: Solve for x
    x = 125,285,327,061.66/546,748.20
  6. Step 6: Final answer
    x = 229,146.30

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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.