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Finding the Fourth Proportional to 463,520.40, 695,280.60 and 392,661.60

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Solution

The fourth proportional to 463,520.40, 695,280.60 and 392,661.60 is: 588,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,520.40 : 695,280.60 = 392,661.60 : x
  2. Step 2: Convert to fraction form
    463,520.40/695,280.60 = 392,661.60/x
  3. Step 3: Cross multiply
    463,520.40x = 695,280.60 × 392,661.60
  4. Step 4: Simplify right side
    463,520.40x = 273,009,992,844.96
  5. Step 5: Solve for x
    x = 273,009,992,844.96/463,520.40
  6. Step 6: Final answer
    x = 588,992.40

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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.