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Finding the Fourth Proportional to 591,104.40, 885,344.40 and 486,128.40

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Solution

The fourth proportional to 591,104.40, 885,344.40 and 486,128.40 is: 728,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,104.40 : 885,344.40 = 486,128.40 : x
  2. Step 2: Convert to fraction form
    591,104.40/885,344.40 = 486,128.40/x
  3. Step 3: Cross multiply
    591,104.40x = 885,344.40 × 486,128.40
  4. Step 4: Simplify right side
    591,104.40x = 430,391,056,620.96
  5. Step 5: Solve for x
    x = 430,391,056,620.96/591,104.40
  6. Step 6: Final answer
    x = 728,113.44

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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.