Home / 430,924.15-644,811.56-253,514.71

Finding the Fourth Proportional to 430,924.15, 644,811.56 and 253,514.71

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Solution

The fourth proportional to 430,924.15, 644,811.56 and 253,514.71 is: 379,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,924.15 : 644,811.56 = 253,514.71 : x
  2. Step 2: Convert to fraction form
    430,924.15/644,811.56 = 253,514.71/x
  3. Step 3: Cross multiply
    430,924.15x = 644,811.56 × 253,514.71
  4. Step 4: Simplify right side
    430,924.15x = 163,469,215,135.15
  5. Step 5: Solve for x
    x = 163,469,215,135.15/430,924.15
  6. Step 6: Final answer
    x = 379,345.68

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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.