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Finding the Fourth Proportional to 662,558.40, 993,837.60 and 617,943.60

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Solution

The fourth proportional to 662,558.40, 993,837.60 and 617,943.60 is: 926,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,558.40 : 993,837.60 = 617,943.60 : x
  2. Step 2: Convert to fraction form
    662,558.40/993,837.60 = 617,943.60/x
  3. Step 3: Cross multiply
    662,558.40x = 993,837.60 × 617,943.60
  4. Step 4: Simplify right side
    662,558.40x = 614,135,584,359.36
  5. Step 5: Solve for x
    x = 614,135,584,359.36/662,558.40
  6. Step 6: Final answer
    x = 926,915.40

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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.