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Finding the Fourth Proportional to 612,799.56, 919,205.64 and 186,404.76

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Solution

The fourth proportional to 612,799.56, 919,205.64 and 186,404.76 is: 279,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,799.56 : 919,205.64 = 186,404.76 : x
  2. Step 2: Convert to fraction form
    612,799.56/919,205.64 = 186,404.76/x
  3. Step 3: Cross multiply
    612,799.56x = 919,205.64 × 186,404.76
  4. Step 4: Simplify right side
    612,799.56x = 171,344,306,714.85
  5. Step 5: Solve for x
    x = 171,344,306,714.85/612,799.56
  6. Step 6: Final answer
    x = 279,609.06

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1.5x scale

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.