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Finding the Fourth Proportional to 665,605.12, 998,210.58 and 192,294.76

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Solution

The fourth proportional to 665,605.12, 998,210.58 and 192,294.76 is: 288,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,605.12 : 998,210.58 = 192,294.76 : x
  2. Step 2: Convert to fraction form
    665,605.12/998,210.58 = 192,294.76/x
  3. Step 3: Cross multiply
    665,605.12x = 998,210.58 × 192,294.76
  4. Step 4: Simplify right side
    665,605.12x = 191,950,663,910.56
  5. Step 5: Solve for x
    x = 191,950,663,910.56/665,605.12
  6. Step 6: Final answer
    x = 288,385.20

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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.