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Finding the Fourth Proportional to 664,160.72, 996,133.84 and 190,738.40

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Solution

The fourth proportional to 664,160.72, 996,133.84 and 190,738.40 is: 286,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,160.72 : 996,133.84 = 190,738.40 : x
  2. Step 2: Convert to fraction form
    664,160.72/996,133.84 = 190,738.40/x
  3. Step 3: Cross multiply
    664,160.72x = 996,133.84 × 190,738.40
  4. Step 4: Simplify right side
    664,160.72x = 190,000,974,827.46
  5. Step 5: Solve for x
    x = 190,000,974,827.46/664,160.72
  6. Step 6: Final answer
    x = 286,076.80

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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.