Home / 535,566.03-739,081.05-306,128.22

Finding the Fourth Proportional to 535,566.03, 739,081.05 and 306,128.22

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Solution

The fourth proportional to 535,566.03, 739,081.05 and 306,128.22 is: 422,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,566.03 : 739,081.05 = 306,128.22 : x
  2. Step 2: Convert to fraction form
    535,566.03/739,081.05 = 306,128.22/x
  3. Step 3: Cross multiply
    535,566.03x = 739,081.05 × 306,128.22
  4. Step 4: Simplify right side
    535,566.03x = 226,253,566,272.23
  5. Step 5: Solve for x
    x = 226,253,566,272.23/535,566.03
  6. Step 6: Final answer
    x = 422,456.90

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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.