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Finding the Fourth Proportional to 551,346.80, 827,020.20 and 416,627.60

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Solution

The fourth proportional to 551,346.80, 827,020.20 and 416,627.60 is: 624,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,346.80 : 827,020.20 = 416,627.60 : x
  2. Step 2: Convert to fraction form
    551,346.80/827,020.20 = 416,627.60/x
  3. Step 3: Cross multiply
    551,346.80x = 827,020.20 × 416,627.60
  4. Step 4: Simplify right side
    551,346.80x = 344,559,441,077.52
  5. Step 5: Solve for x
    x = 344,559,441,077.52/551,346.80
  6. Step 6: Final answer
    x = 624,941.40

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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.