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Finding the Fourth Proportional to 615,175.89, 922,758.30 and 194,451.90

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Solution

The fourth proportional to 615,175.89, 922,758.30 and 194,451.90 is: 291,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,175.89 : 922,758.30 = 194,451.90 : x
  2. Step 2: Convert to fraction form
    615,175.89/922,758.30 = 194,451.90/x
  3. Step 3: Cross multiply
    615,175.89x = 922,758.30 × 194,451.90
  4. Step 4: Simplify right side
    615,175.89x = 179,432,104,675.77
  5. Step 5: Solve for x
    x = 179,432,104,675.77/615,175.89
  6. Step 6: Final answer
    x = 291,676.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.