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Finding the Fourth Proportional to 345,272.98, 476,489.58 and 190,230.58

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Solution

The fourth proportional to 345,272.98, 476,489.58 and 190,230.58 is: 262,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,272.98 : 476,489.58 = 190,230.58 : x
  2. Step 2: Convert to fraction form
    345,272.98/476,489.58 = 190,230.58/x
  3. Step 3: Cross multiply
    345,272.98x = 476,489.58 × 190,230.58
  4. Step 4: Simplify right side
    345,272.98x = 90,642,889,167.36
  5. Step 5: Solve for x
    x = 90,642,889,167.36/345,272.98
  6. Step 6: Final answer
    x = 262,525.29

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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.