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Finding the Fourth Proportional to 614,439.26, 921,814.40 and 171,207.26

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Solution

The fourth proportional to 614,439.26, 921,814.40 and 171,207.26 is: 256,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,439.26 : 921,814.40 = 171,207.26 : x
  2. Step 2: Convert to fraction form
    614,439.26/921,814.40 = 171,207.26/x
  3. Step 3: Cross multiply
    614,439.26x = 921,814.40 × 171,207.26
  4. Step 4: Simplify right side
    614,439.26x = 157,821,317,652.54
  5. Step 5: Solve for x
    x = 157,821,317,652.54/614,439.26
  6. Step 6: Final answer
    x = 256,854.22

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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.