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Finding the Fourth Proportional to 436,138.24, 654,207.12 and 116,290.24

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Solution

The fourth proportional to 436,138.24, 654,207.12 and 116,290.24 is: 174,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,138.24 : 654,207.12 = 116,290.24 : x
  2. Step 2: Convert to fraction form
    436,138.24/654,207.12 = 116,290.24/x
  3. Step 3: Cross multiply
    436,138.24x = 654,207.12 × 116,290.24
  4. Step 4: Simplify right side
    436,138.24x = 76,077,902,994.51
  5. Step 5: Solve for x
    x = 76,077,902,994.51/436,138.24
  6. Step 6: Final answer
    x = 174,435.30

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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.