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Finding the Fourth Proportional to 519,694.20, 779,541.30 and 294,967.80

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Solution

The fourth proportional to 519,694.20, 779,541.30 and 294,967.80 is: 442,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,694.20 : 779,541.30 = 294,967.80 : x
  2. Step 2: Convert to fraction form
    519,694.20/779,541.30 = 294,967.80/x
  3. Step 3: Cross multiply
    519,694.20x = 779,541.30 × 294,967.80
  4. Step 4: Simplify right side
    519,694.20x = 229,939,582,270.14
  5. Step 5: Solve for x
    x = 229,939,582,270.14/519,694.20
  6. Step 6: Final answer
    x = 442,451.70

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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.