Home / 836,688.96-1,255,033.44-338,402.88

Finding the Fourth Proportional to 836,688.96, 1,255,033.44 and 338,402.88

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Solution

The fourth proportional to 836,688.96, 1,255,033.44 and 338,402.88 is: 507,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,688.96 : 1,255,033.44 = 338,402.88 : x
  2. Step 2: Convert to fraction form
    836,688.96/1,255,033.44 = 338,402.88/x
  3. Step 3: Cross multiply
    836,688.96x = 1,255,033.44 × 338,402.88
  4. Step 4: Simplify right side
    836,688.96x = 424,706,930,592.31
  5. Step 5: Solve for x
    x = 424,706,930,592.31/836,688.96
  6. Step 6: Final answer
    x = 507,604.32

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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.