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Finding the Fourth Proportional to 330,873.93, 456,646.56 and 194,900.85

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Solution

The fourth proportional to 330,873.93, 456,646.56 and 194,900.85 is: 268,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,873.93 : 456,646.56 = 194,900.85 : x
  2. Step 2: Convert to fraction form
    330,873.93/456,646.56 = 194,900.85/x
  3. Step 3: Cross multiply
    330,873.93x = 456,646.56 × 194,900.85
  4. Step 4: Simplify right side
    330,873.93x = 89,000,802,693.58
  5. Step 5: Solve for x
    x = 89,000,802,693.58/330,873.93
  6. Step 6: Final answer
    x = 268,987.05

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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.