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Finding the Fourth Proportional to 311,903.60, 466,980.60 and 303,155.60

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Solution

The fourth proportional to 311,903.60, 466,980.60 and 303,155.60 is: 453,883.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,903.60 : 466,980.60 = 303,155.60 : x
  2. Step 2: Convert to fraction form
    311,903.60/466,980.60 = 303,155.60/x
  3. Step 3: Cross multiply
    311,903.60x = 466,980.60 × 303,155.60
  4. Step 4: Simplify right side
    311,903.60x = 141,567,783,981.36
  5. Step 5: Solve for x
    x = 141,567,783,981.36/311,903.60
  6. Step 6: Final answer
    x = 453,883.14

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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.