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Finding the Fourth Proportional to 317,998.20, 438,816.30 and 174,755.16

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Solution

The fourth proportional to 317,998.20, 438,816.30 and 174,755.16 is: 241,150.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,998.20 : 438,816.30 = 174,755.16 : x
  2. Step 2: Convert to fraction form
    317,998.20/438,816.30 = 174,755.16/x
  3. Step 3: Cross multiply
    317,998.20x = 438,816.30 × 174,755.16
  4. Step 4: Simplify right side
    317,998.20x = 76,685,412,717.11
  5. Step 5: Solve for x
    x = 76,685,412,717.11/317,998.20
  6. Step 6: Final answer
    x = 241,150.46

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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.