Home / 664,712.20-996,953.10-243,771.40

Finding the Fourth Proportional to 664,712.20, 996,953.10 and 243,771.40

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Solution

The fourth proportional to 664,712.20, 996,953.10 and 243,771.40 is: 365,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,712.20 : 996,953.10 = 243,771.40 : x
  2. Step 2: Convert to fraction form
    664,712.20/996,953.10 = 243,771.40/x
  3. Step 3: Cross multiply
    664,712.20x = 996,953.10 × 243,771.40
  4. Step 4: Simplify right side
    664,712.20x = 243,028,652,921.34
  5. Step 5: Solve for x
    x = 243,028,652,921.34/664,712.20
  6. Step 6: Final answer
    x = 365,614.85

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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.