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Finding the Fourth Proportional to 303,287.60, 454,931.40 and 196,999.40

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Solution

The fourth proportional to 303,287.60, 454,931.40 and 196,999.40 is: 295,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,287.60 : 454,931.40 = 196,999.40 : x
  2. Step 2: Convert to fraction form
    303,287.60/454,931.40 = 196,999.40/x
  3. Step 3: Cross multiply
    303,287.60x = 454,931.40 × 196,999.40
  4. Step 4: Simplify right side
    303,287.60x = 89,621,212,841.16
  5. Step 5: Solve for x
    x = 89,621,212,841.16/303,287.60
  6. Step 6: Final answer
    x = 295,499.10

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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.