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Finding the Fourth Proportional to 483,440.60, 725,160.90 and 411,901.40

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Solution

The fourth proportional to 483,440.60, 725,160.90 and 411,901.40 is: 617,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,440.60 : 725,160.90 = 411,901.40 : x
  2. Step 2: Convert to fraction form
    483,440.60/725,160.90 = 411,901.40/x
  3. Step 3: Cross multiply
    483,440.60x = 725,160.90 × 411,901.40
  4. Step 4: Simplify right side
    483,440.60x = 298,694,789,935.26
  5. Step 5: Solve for x
    x = 298,694,789,935.26/483,440.60
  6. Step 6: Final answer
    x = 617,852.10

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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.