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Finding the Fourth Proportional to 612,676.60, 919,101.30 and 191,908.60

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Solution

The fourth proportional to 612,676.60, 919,101.30 and 191,908.60 is: 287,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,676.60 : 919,101.30 = 191,908.60 : x
  2. Step 2: Convert to fraction form
    612,676.60/919,101.30 = 191,908.60/x
  3. Step 3: Cross multiply
    612,676.60x = 919,101.30 × 191,908.60
  4. Step 4: Simplify right side
    612,676.60x = 176,383,443,741.18
  5. Step 5: Solve for x
    x = 176,383,443,741.18/612,676.60
  6. Step 6: Final answer
    x = 287,889.96

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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.