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Finding the Fourth Proportional to 516,795.76, 775,344.30 and 317,244.16

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Solution

The fourth proportional to 516,795.76, 775,344.30 and 317,244.16 is: 475,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,795.76 : 775,344.30 = 317,244.16 : x
  2. Step 2: Convert to fraction form
    516,795.76/775,344.30 = 317,244.16/x
  3. Step 3: Cross multiply
    516,795.76x = 775,344.30 × 317,244.16
  4. Step 4: Simplify right side
    516,795.76x = 245,973,451,164.29
  5. Step 5: Solve for x
    x = 245,973,451,164.29/516,795.76
  6. Step 6: Final answer
    x = 475,958.73

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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.