Home / 513,631.40-770,447.10-181,164.20

Finding the Fourth Proportional to 513,631.40, 770,447.10 and 181,164.20

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Solution

The fourth proportional to 513,631.40, 770,447.10 and 181,164.20 is: 271,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,631.40 : 770,447.10 = 181,164.20 : x
  2. Step 2: Convert to fraction form
    513,631.40/770,447.10 = 181,164.20/x
  3. Step 3: Cross multiply
    513,631.40x = 770,447.10 × 181,164.20
  4. Step 4: Simplify right side
    513,631.40x = 139,577,432,513.82
  5. Step 5: Solve for x
    x = 139,577,432,513.82/513,631.40
  6. Step 6: Final answer
    x = 271,746.30

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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.