Home / 511,538.35-705,913.60-282,116.86

Finding the Fourth Proportional to 511,538.35, 705,913.60 and 282,116.86

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Solution

The fourth proportional to 511,538.35, 705,913.60 and 282,116.86 is: 389,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,538.35 : 705,913.60 = 282,116.86 : x
  2. Step 2: Convert to fraction form
    511,538.35/705,913.60 = 282,116.86/x
  3. Step 3: Cross multiply
    511,538.35x = 705,913.60 × 282,116.86
  4. Step 4: Simplify right side
    511,538.35x = 199,150,128,263.30
  5. Step 5: Solve for x
    x = 199,150,128,263.30/511,538.35
  6. Step 6: Final answer
    x = 389,316.13

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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.