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Finding the Fourth Proportional to 866,512.54, 1,300,407.28 and 411,105.44

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Solution

The fourth proportional to 866,512.54, 1,300,407.28 and 411,105.44 is: 616,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,512.54 : 1,300,407.28 = 411,105.44 : x
  2. Step 2: Convert to fraction form
    866,512.54/1,300,407.28 = 411,105.44/x
  3. Step 3: Cross multiply
    866,512.54x = 1,300,407.28 × 411,105.44
  4. Step 4: Simplify right side
    866,512.54x = 534,604,507,023.60
  5. Step 5: Solve for x
    x = 534,604,507,023.60/866,512.54
  6. Step 6: Final answer
    x = 616,961.07

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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.