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Finding the Fourth Proportional to 551,409.55, 827,114.33 and 411,441.55

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Solution

The fourth proportional to 551,409.55, 827,114.33 and 411,441.55 is: 617,162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,409.55 : 827,114.33 = 411,441.55 : x
  2. Step 2: Convert to fraction form
    551,409.55/827,114.33 = 411,441.55/x
  3. Step 3: Cross multiply
    551,409.55x = 827,114.33 × 411,441.55
  4. Step 4: Simplify right side
    551,409.55x = 340,309,201,962.41
  5. Step 5: Solve for x
    x = 340,309,201,962.41/551,409.55
  6. Step 6: Final answer
    x = 617,162.33

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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.