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Finding the Fourth Proportional to 668,667.89, 922,761.68 and 382,194.12

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Solution

The fourth proportional to 668,667.89, 922,761.68 and 382,194.12 is: 527,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,667.89 : 922,761.68 = 382,194.12 : x
  2. Step 2: Convert to fraction form
    668,667.89/922,761.68 = 382,194.12/x
  3. Step 3: Cross multiply
    668,667.89x = 922,761.68 × 382,194.12
  4. Step 4: Simplify right side
    668,667.89x = 352,674,086,346.35
  5. Step 5: Solve for x
    x = 352,674,086,346.35/668,667.89
  6. Step 6: Final answer
    x = 527,427.88

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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.