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Finding the Fourth Proportional to 436,170.09, 654,254.32 and 136,673.63

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Solution

The fourth proportional to 436,170.09, 654,254.32 and 136,673.63 is: 205,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,170.09 : 654,254.32 = 136,673.63 : x
  2. Step 2: Convert to fraction form
    436,170.09/654,254.32 = 136,673.63/x
  3. Step 3: Cross multiply
    436,170.09x = 654,254.32 × 136,673.63
  4. Step 4: Simplify right side
    436,170.09x = 89,419,312,857.58
  5. Step 5: Solve for x
    x = 89,419,312,857.58/436,170.09
  6. Step 6: Final answer
    x = 205,010.19

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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.