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Finding the Fourth Proportional to 612,930.56, 919,394.24 and 192,205.76

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Solution

The fourth proportional to 612,930.56, 919,394.24 and 192,205.76 is: 288,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,930.56 : 919,394.24 = 192,205.76 : x
  2. Step 2: Convert to fraction form
    612,930.56/919,394.24 = 192,205.76/x
  3. Step 3: Cross multiply
    612,930.56x = 919,394.24 × 192,205.76
  4. Step 4: Simplify right side
    612,930.56x = 176,712,868,638.82
  5. Step 5: Solve for x
    x = 176,712,868,638.82/612,930.56
  6. Step 6: Final answer
    x = 288,308.14

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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.