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Finding the Fourth Proportional to 493,678.40, 740,517.60 and 441,190.40

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Solution

The fourth proportional to 493,678.40, 740,517.60 and 441,190.40 is: 661,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,678.40 : 740,517.60 = 441,190.40 : x
  2. Step 2: Convert to fraction form
    493,678.40/740,517.60 = 441,190.40/x
  3. Step 3: Cross multiply
    493,678.40x = 740,517.60 × 441,190.40
  4. Step 4: Simplify right side
    493,678.40x = 326,709,256,151.04
  5. Step 5: Solve for x
    x = 326,709,256,151.04/493,678.40
  6. Step 6: Final answer
    x = 661,785.60

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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.