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Finding the Fourth Proportional to 668,667.96, 922,764.56 and 382,197.69

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Solution

The fourth proportional to 668,667.96, 922,764.56 and 382,197.69 is: 527,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,667.96 : 922,764.56 = 382,197.69 : x
  2. Step 2: Convert to fraction form
    668,667.96/922,764.56 = 382,197.69/x
  3. Step 3: Cross multiply
    668,667.96x = 922,764.56 × 382,197.69
  4. Step 4: Simplify right side
    668,667.96x = 352,678,481,334.88
  5. Step 5: Solve for x
    x = 352,678,481,334.88/668,667.96
  6. Step 6: Final answer
    x = 527,434.40

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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.