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Finding the Fourth Proportional to 447,441.08, 617,470.74 and 256,465.64

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Solution

The fourth proportional to 447,441.08, 617,470.74 and 256,465.64 is: 353,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,441.08 : 617,470.74 = 256,465.64 : x
  2. Step 2: Convert to fraction form
    447,441.08/617,470.74 = 256,465.64/x
  3. Step 3: Cross multiply
    447,441.08x = 617,470.74 × 256,465.64
  4. Step 4: Simplify right side
    447,441.08x = 158,360,028,515.37
  5. Step 5: Solve for x
    x = 158,360,028,515.37/447,441.08
  6. Step 6: Final answer
    x = 353,923.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.