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Finding the Fourth Proportional to 560,449.90, 773,398.58 and 331,080.84

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Solution

The fourth proportional to 560,449.90, 773,398.58 and 331,080.84 is: 456,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,449.90 : 773,398.58 = 331,080.84 : x
  2. Step 2: Convert to fraction form
    560,449.90/773,398.58 = 331,080.84/x
  3. Step 3: Cross multiply
    560,449.90x = 773,398.58 × 331,080.84
  4. Step 4: Simplify right side
    560,449.90x = 256,057,449,865.80
  5. Step 5: Solve for x
    x = 256,057,449,865.80/560,449.90
  6. Step 6: Final answer
    x = 456,878.39

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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.