Home / 639,590.09-882,611.12-349,196.29

Finding the Fourth Proportional to 639,590.09, 882,611.12 and 349,196.29

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Solution

The fourth proportional to 639,590.09, 882,611.12 and 349,196.29 is: 481,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,590.09 : 882,611.12 = 349,196.29 : x
  2. Step 2: Convert to fraction form
    639,590.09/882,611.12 = 349,196.29/x
  3. Step 3: Cross multiply
    639,590.09x = 882,611.12 × 349,196.29
  4. Step 4: Simplify right side
    639,590.09x = 308,204,527,283.21
  5. Step 5: Solve for x
    x = 308,204,527,283.21/639,590.09
  6. Step 6: Final answer
    x = 481,878.21

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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.