Home / 672,936.11-928,417.32-431,351.89

Finding the Fourth Proportional to 672,936.11, 928,417.32 and 431,351.89

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Solution

The fourth proportional to 672,936.11, 928,417.32 and 431,351.89 is: 595,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,936.11 : 928,417.32 = 431,351.89 : x
  2. Step 2: Convert to fraction form
    672,936.11/928,417.32 = 431,351.89/x
  3. Step 3: Cross multiply
    672,936.11x = 928,417.32 × 431,351.89
  4. Step 4: Simplify right side
    672,936.11x = 400,474,565,690.74
  5. Step 5: Solve for x
    x = 400,474,565,690.74/672,936.11
  6. Step 6: Final answer
    x = 595,115.29

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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.