Home / 664,704.20-996,941.10-243,763.40

Finding the Fourth Proportional to 664,704.20, 996,941.10 and 243,763.40

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Solution

The fourth proportional to 664,704.20, 996,941.10 and 243,763.40 is: 365,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,704.20 : 996,941.10 = 243,763.40 : x
  2. Step 2: Convert to fraction form
    664,704.20/996,941.10 = 243,763.40/x
  3. Step 3: Cross multiply
    664,704.20x = 996,941.10 × 243,763.40
  4. Step 4: Simplify right side
    664,704.20x = 243,017,752,135.74
  5. Step 5: Solve for x
    x = 243,017,752,135.74/664,704.20
  6. Step 6: Final answer
    x = 365,602.85

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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.