Home / 395,314.26-545,312.35-234,012.12

Finding the Fourth Proportional to 395,314.26, 545,312.35 and 234,012.12

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Solution

The fourth proportional to 395,314.26, 545,312.35 and 234,012.12 is: 322,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,314.26 : 545,312.35 = 234,012.12 : x
  2. Step 2: Convert to fraction form
    395,314.26/545,312.35 = 234,012.12/x
  3. Step 3: Cross multiply
    395,314.26x = 545,312.35 × 234,012.12
  4. Step 4: Simplify right side
    395,314.26x = 127,609,699,085.68
  5. Step 5: Solve for x
    x = 127,609,699,085.68/395,314.26
  6. Step 6: Final answer
    x = 322,805.71

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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.