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Finding the Fourth Proportional to 591,709.20, 886,980.60 and 291,944.40

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Solution

The fourth proportional to 591,709.20, 886,980.60 and 291,944.40 is: 437,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,709.20 : 886,980.60 = 291,944.40 : x
  2. Step 2: Convert to fraction form
    591,709.20/886,980.60 = 291,944.40/x
  3. Step 3: Cross multiply
    591,709.20x = 886,980.60 × 291,944.40
  4. Step 4: Simplify right side
    591,709.20x = 258,949,019,078.64
  5. Step 5: Solve for x
    x = 258,949,019,078.64/591,709.20
  6. Step 6: Final answer
    x = 437,628.85

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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.