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Finding the Fourth Proportional to 436,235.58, 654,334.83 and 136,709.55

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Solution

The fourth proportional to 436,235.58, 654,334.83 and 136,709.55 is: 205,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,235.58 : 654,334.83 = 136,709.55 : x
  2. Step 2: Convert to fraction form
    436,235.58/654,334.83 = 136,709.55/x
  3. Step 3: Cross multiply
    436,235.58x = 654,334.83 × 136,709.55
  4. Step 4: Simplify right side
    436,235.58x = 89,453,820,158.63
  5. Step 5: Solve for x
    x = 89,453,820,158.63/436,235.58
  6. Step 6: Final answer
    x = 205,058.51

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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.