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Finding the Fourth Proportional to 330,994.25, 456,780.92 and 187,775.82

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Solution

The fourth proportional to 330,994.25, 456,780.92 and 187,775.82 is: 259,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,994.25 : 456,780.92 = 187,775.82 : x
  2. Step 2: Convert to fraction form
    330,994.25/456,780.92 = 187,775.82/x
  3. Step 3: Cross multiply
    330,994.25x = 456,780.92 × 187,775.82
  4. Step 4: Simplify right side
    330,994.25x = 85,772,411,930.71
  5. Step 5: Solve for x
    x = 85,772,411,930.71/330,994.25
  6. Step 6: Final answer
    x = 259,135.66

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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.