Home / 513,629.40-770,444.10-181,162.20

Finding the Fourth Proportional to 513,629.40, 770,444.10 and 181,162.20

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Solution

The fourth proportional to 513,629.40, 770,444.10 and 181,162.20 is: 271,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,629.40 : 770,444.10 = 181,162.20 : x
  2. Step 2: Convert to fraction form
    513,629.40/770,444.10 = 181,162.20/x
  3. Step 3: Cross multiply
    513,629.40x = 770,444.10 × 181,162.20
  4. Step 4: Simplify right side
    513,629.40x = 139,575,348,133.02
  5. Step 5: Solve for x
    x = 139,575,348,133.02/513,629.40
  6. Step 6: Final answer
    x = 271,743.30

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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.