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Finding the Fourth Proportional to 470,079.32, 648,709.45 and 255,219.41

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Solution

The fourth proportional to 470,079.32, 648,709.45 and 255,219.41 is: 352,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,079.32 : 648,709.45 = 255,219.41 : x
  2. Step 2: Convert to fraction form
    470,079.32/648,709.45 = 255,219.41/x
  3. Step 3: Cross multiply
    470,079.32x = 648,709.45 × 255,219.41
  4. Step 4: Simplify right side
    470,079.32x = 165,563,244,074.15
  5. Step 5: Solve for x
    x = 165,563,244,074.15/470,079.32
  6. Step 6: Final answer
    x = 352,202.79

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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.