Home / 456,767.40-685,151.10-141,256.20

Finding the Fourth Proportional to 456,767.40, 685,151.10 and 141,256.20

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Solution

The fourth proportional to 456,767.40, 685,151.10 and 141,256.20 is: 211,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,767.40 : 685,151.10 = 141,256.20 : x
  2. Step 2: Convert to fraction form
    456,767.40/685,151.10 = 141,256.20/x
  3. Step 3: Cross multiply
    456,767.40x = 685,151.10 × 141,256.20
  4. Step 4: Simplify right side
    456,767.40x = 96,781,840,811.82
  5. Step 5: Solve for x
    x = 96,781,840,811.82/456,767.40
  6. Step 6: Final answer
    x = 211,884.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.