Home / 371,514.03-512,691.33-210,400.44

Finding the Fourth Proportional to 371,514.03, 512,691.33 and 210,400.44

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Solution

The fourth proportional to 371,514.03, 512,691.33 and 210,400.44 is: 290,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,514.03 : 512,691.33 = 210,400.44 : x
  2. Step 2: Convert to fraction form
    371,514.03/512,691.33 = 210,400.44/x
  3. Step 3: Cross multiply
    371,514.03x = 512,691.33 × 210,400.44
  4. Step 4: Simplify right side
    371,514.03x = 107,870,481,416.19
  5. Step 5: Solve for x
    x = 107,870,481,416.19/371,514.03
  6. Step 6: Final answer
    x = 290,353.72

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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.