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Finding the Fourth Proportional to 617,876.40, 926,814.60 and 262,801.20

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Solution

The fourth proportional to 617,876.40, 926,814.60 and 262,801.20 is: 394,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,876.40 : 926,814.60 = 262,801.20 : x
  2. Step 2: Convert to fraction form
    617,876.40/926,814.60 = 262,801.20/x
  3. Step 3: Cross multiply
    617,876.40x = 926,814.60 × 262,801.20
  4. Step 4: Simplify right side
    617,876.40x = 243,567,989,057.52
  5. Step 5: Solve for x
    x = 243,567,989,057.52/617,876.40
  6. Step 6: Final answer
    x = 394,201.80

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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.