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Finding the Fourth Proportional to 354,924.60, 531,350.10 and 317,599.80

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Solution

The fourth proportional to 354,924.60, 531,350.10 and 317,599.80 is: 475,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,924.60 : 531,350.10 = 317,599.80 : x
  2. Step 2: Convert to fraction form
    354,924.60/531,350.10 = 317,599.80/x
  3. Step 3: Cross multiply
    354,924.60x = 531,350.10 × 317,599.80
  4. Step 4: Simplify right side
    354,924.60x = 168,756,685,489.98
  5. Step 5: Solve for x
    x = 168,756,685,489.98/354,924.60
  6. Step 6: Final answer
    x = 475,471.93

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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.