Home / 389,116.20-536,988.54-219,350.32

Finding the Fourth Proportional to 389,116.20, 536,988.54 and 219,350.32

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Solution

The fourth proportional to 389,116.20, 536,988.54 and 219,350.32 is: 302,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,116.20 : 536,988.54 = 219,350.32 : x
  2. Step 2: Convert to fraction form
    389,116.20/536,988.54 = 219,350.32/x
  3. Step 3: Cross multiply
    389,116.20x = 536,988.54 × 219,350.32
  4. Step 4: Simplify right side
    389,116.20x = 117,788,608,085.33
  5. Step 5: Solve for x
    x = 117,788,608,085.33/389,116.20
  6. Step 6: Final answer
    x = 302,708.06

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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.