Home / 665,614.20-998,421.30-547,516.20

Finding the Fourth Proportional to 665,614.20, 998,421.30 and 547,516.20

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Solution

The fourth proportional to 665,614.20, 998,421.30 and 547,516.20 is: 821,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,614.20 : 998,421.30 = 547,516.20 : x
  2. Step 2: Convert to fraction form
    665,614.20/998,421.30 = 547,516.20/x
  3. Step 3: Cross multiply
    665,614.20x = 998,421.30 × 547,516.20
  4. Step 4: Simplify right side
    665,614.20x = 546,651,836,175.06
  5. Step 5: Solve for x
    x = 546,651,836,175.06/665,614.20
  6. Step 6: Final answer
    x = 821,274.30

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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.