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Finding the Fourth Proportional to 468,832.12, 646,990.31 and 253,972.18

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Solution

The fourth proportional to 468,832.12, 646,990.31 and 253,972.18 is: 350,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,832.12 : 646,990.31 = 253,972.18 : x
  2. Step 2: Convert to fraction form
    468,832.12/646,990.31 = 253,972.18/x
  3. Step 3: Cross multiply
    468,832.12x = 646,990.31 × 253,972.18
  4. Step 4: Simplify right side
    468,832.12x = 164,317,539,469.58
  5. Step 5: Solve for x
    x = 164,317,539,469.58/468,832.12
  6. Step 6: Final answer
    x = 350,482.68

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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.