Home / 672,958.20-928,783.06-431,513.40

Finding the Fourth Proportional to 672,958.20, 928,783.06 and 431,513.40

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Solution

The fourth proportional to 672,958.20, 928,783.06 and 431,513.40 is: 595,553.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,958.20 : 928,783.06 = 431,513.40 : x
  2. Step 2: Convert to fraction form
    672,958.20/928,783.06 = 431,513.40/x
  3. Step 3: Cross multiply
    672,958.20x = 928,783.06 × 431,513.40
  4. Step 4: Simplify right side
    672,958.20x = 400,782,336,083.00
  5. Step 5: Solve for x
    x = 400,782,336,083.00/672,958.20
  6. Step 6: Final answer
    x = 595,553.09

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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.