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Finding the Fourth Proportional to 587,149.56, 810,270.54 and 318,877.56

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Solution

The fourth proportional to 587,149.56, 810,270.54 and 318,877.56 is: 440,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,149.56 : 810,270.54 = 318,877.56 : x
  2. Step 2: Convert to fraction form
    587,149.56/810,270.54 = 318,877.56/x
  3. Step 3: Cross multiply
    587,149.56x = 810,270.54 × 318,877.56
  4. Step 4: Simplify right side
    587,149.56x = 258,377,092,735.08
  5. Step 5: Solve for x
    x = 258,377,092,735.08/587,149.56
  6. Step 6: Final answer
    x = 440,053.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.