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Finding the Fourth Proportional to 317,446.08, 438,080.94 and 174,219.44

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Solution

The fourth proportional to 317,446.08, 438,080.94 and 174,219.44 is: 240,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,446.08 : 438,080.94 = 174,219.44 : x
  2. Step 2: Convert to fraction form
    317,446.08/438,080.94 = 174,219.44/x
  3. Step 3: Cross multiply
    317,446.08x = 438,080.94 × 174,219.44
  4. Step 4: Simplify right side
    317,446.08x = 76,322,216,041.47
  5. Step 5: Solve for x
    x = 76,322,216,041.47/317,446.08
  6. Step 6: Final answer
    x = 240,425.76

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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.