Home / 820,171.40-1,230,257.10-616,452.35

Finding the Fourth Proportional to 820,171.40, 1,230,257.10 and 616,452.35

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Solution

The fourth proportional to 820,171.40, 1,230,257.10 and 616,452.35 is: 924,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,171.40 : 1,230,257.10 = 616,452.35 : x
  2. Step 2: Convert to fraction form
    820,171.40/1,230,257.10 = 616,452.35/x
  3. Step 3: Cross multiply
    820,171.40x = 1,230,257.10 × 616,452.35
  4. Step 4: Simplify right side
    820,171.40x = 758,394,880,399.19
  5. Step 5: Solve for x
    x = 758,394,880,399.19/820,171.40
  6. Step 6: Final answer
    x = 924,678.53

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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.