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Finding the Fourth Proportional to 609,663.54, 839,416.19 and 517,600.73

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Solution

The fourth proportional to 609,663.54, 839,416.19 and 517,600.73 is: 712,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,663.54 : 839,416.19 = 517,600.73 : x
  2. Step 2: Convert to fraction form
    609,663.54/839,416.19 = 517,600.73/x
  3. Step 3: Cross multiply
    609,663.54x = 839,416.19 × 517,600.73
  4. Step 4: Simplify right side
    609,663.54x = 434,482,432,717.82
  5. Step 5: Solve for x
    x = 434,482,432,717.82/609,663.54
  6. Step 6: Final answer
    x = 712,659.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.