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Finding the Fourth Proportional to 615,628.40, 923,442.60 and 416,044.40

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Solution

The fourth proportional to 615,628.40, 923,442.60 and 416,044.40 is: 624,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,628.40 : 923,442.60 = 416,044.40 : x
  2. Step 2: Convert to fraction form
    615,628.40/923,442.60 = 416,044.40/x
  3. Step 3: Cross multiply
    615,628.40x = 923,442.60 × 416,044.40
  4. Step 4: Simplify right side
    615,628.40x = 384,193,122,451.44
  5. Step 5: Solve for x
    x = 384,193,122,451.44/615,628.40
  6. Step 6: Final answer
    x = 624,066.60

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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.