Home / 979,512.43-1,351,713.66-549,784.75

Finding the Fourth Proportional to 979,512.43, 1,351,713.66 and 549,784.75

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Solution

The fourth proportional to 979,512.43, 1,351,713.66 and 549,784.75 is: 758,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,512.43 : 1,351,713.66 = 549,784.75 : x
  2. Step 2: Convert to fraction form
    979,512.43/1,351,713.66 = 549,784.75/x
  3. Step 3: Cross multiply
    979,512.43x = 1,351,713.66 × 549,784.75
  4. Step 4: Simplify right side
    979,512.43x = 743,151,556,634.69
  5. Step 5: Solve for x
    x = 743,151,556,634.69/979,512.43
  6. Step 6: Final answer
    x = 758,695.38

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Half scale
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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.