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Finding the Fourth Proportional to 625,814.76, 863,589.96 and 353,867.04

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Solution

The fourth proportional to 625,814.76, 863,589.96 and 353,867.04 is: 488,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,814.76 : 863,589.96 = 353,867.04 : x
  2. Step 2: Convert to fraction form
    625,814.76/863,589.96 = 353,867.04/x
  3. Step 3: Cross multiply
    625,814.76x = 863,589.96 × 353,867.04
  4. Step 4: Simplify right side
    625,814.76x = 305,596,022,918.92
  5. Step 5: Solve for x
    x = 305,596,022,918.92/625,814.76
  6. Step 6: Final answer
    x = 488,317.06

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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.