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Finding the Fourth Proportional to 551,858.30, 827,787.45 and 383,896.70

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Solution

The fourth proportional to 551,858.30, 827,787.45 and 383,896.70 is: 575,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,858.30 : 827,787.45 = 383,896.70 : x
  2. Step 2: Convert to fraction form
    551,858.30/827,787.45 = 383,896.70/x
  3. Step 3: Cross multiply
    551,858.30x = 827,787.45 × 383,896.70
  4. Step 4: Simplify right side
    551,858.30x = 317,784,870,356.42
  5. Step 5: Solve for x
    x = 317,784,870,356.42/551,858.30
  6. Step 6: Final answer
    x = 575,845.05

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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.