Home / 853,189.08-1,177,352.46-490,555.32

Finding the Fourth Proportional to 853,189.08, 1,177,352.46 and 490,555.32

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Solution

The fourth proportional to 853,189.08, 1,177,352.46 and 490,555.32 is: 676,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,189.08 : 1,177,352.46 = 490,555.32 : x
  2. Step 2: Convert to fraction form
    853,189.08/1,177,352.46 = 490,555.32/x
  3. Step 3: Cross multiply
    853,189.08x = 1,177,352.46 × 490,555.32
  4. Step 4: Simplify right side
    853,189.08x = 577,556,512,768.09
  5. Step 5: Solve for x
    x = 577,556,512,768.09/853,189.08
  6. Step 6: Final answer
    x = 676,938.47

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Double scale
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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.