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Finding the Fourth Proportional to 453,856.40, 680,784.60 and 382,997.60

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Solution

The fourth proportional to 453,856.40, 680,784.60 and 382,997.60 is: 574,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,856.40 : 680,784.60 = 382,997.60 : x
  2. Step 2: Convert to fraction form
    453,856.40/680,784.60 = 382,997.60/x
  3. Step 3: Cross multiply
    453,856.40x = 680,784.60 × 382,997.60
  4. Step 4: Simplify right side
    453,856.40x = 260,738,867,916.96
  5. Step 5: Solve for x
    x = 260,738,867,916.96/453,856.40
  6. Step 6: Final answer
    x = 574,496.40

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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.