Home / 629,926.80-944,890.20-393,730.80

Finding the Fourth Proportional to 629,926.80, 944,890.20 and 393,730.80

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Solution

The fourth proportional to 629,926.80, 944,890.20 and 393,730.80 is: 590,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,926.80 : 944,890.20 = 393,730.80 : x
  2. Step 2: Convert to fraction form
    629,926.80/944,890.20 = 393,730.80/x
  3. Step 3: Cross multiply
    629,926.80x = 944,890.20 × 393,730.80
  4. Step 4: Simplify right side
    629,926.80x = 372,032,374,358.16
  5. Step 5: Solve for x
    x = 372,032,374,358.16/629,926.80
  6. Step 6: Final answer
    x = 590,596.20

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Double scale
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Similar ratio
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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.