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Finding the Fourth Proportional to 579,425.20, 869,137.80 and 366,848.80

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Solution

The fourth proportional to 579,425.20, 869,137.80 and 366,848.80 is: 550,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,425.20 : 869,137.80 = 366,848.80 : x
  2. Step 2: Convert to fraction form
    579,425.20/869,137.80 = 366,848.80/x
  3. Step 3: Cross multiply
    579,425.20x = 869,137.80 × 366,848.80
  4. Step 4: Simplify right side
    579,425.20x = 318,842,158,964.64
  5. Step 5: Solve for x
    x = 318,842,158,964.64/579,425.20
  6. Step 6: Final answer
    x = 550,273.20

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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.