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Finding the Fourth Proportional to 405,170.90, 558,772.62 and 337,412.24

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Solution

The fourth proportional to 405,170.90, 558,772.62 and 337,412.24 is: 465,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,170.90 : 558,772.62 = 337,412.24 : x
  2. Step 2: Convert to fraction form
    405,170.90/558,772.62 = 337,412.24/x
  3. Step 3: Cross multiply
    405,170.90x = 558,772.62 × 337,412.24
  4. Step 4: Simplify right side
    405,170.90x = 188,536,721,364.87
  5. Step 5: Solve for x
    x = 188,536,721,364.87/405,170.90
  6. Step 6: Final answer
    x = 465,326.41

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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.