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Finding the Fourth Proportional to 456,434.60, 684,651.90 and 403,946.60

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Solution

The fourth proportional to 456,434.60, 684,651.90 and 403,946.60 is: 605,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,434.60 : 684,651.90 = 403,946.60 : x
  2. Step 2: Convert to fraction form
    456,434.60/684,651.90 = 403,946.60/x
  3. Step 3: Cross multiply
    456,434.60x = 684,651.90 × 403,946.60
  4. Step 4: Simplify right side
    456,434.60x = 276,562,807,188.54
  5. Step 5: Solve for x
    x = 276,562,807,188.54/456,434.60
  6. Step 6: Final answer
    x = 605,919.90

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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.