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Finding the Fourth Proportional to 291,182.62, 436,776.34 and 91,498.58

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Solution

The fourth proportional to 291,182.62, 436,776.34 and 91,498.58 is: 137,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,182.62 : 436,776.34 = 91,498.58 : x
  2. Step 2: Convert to fraction form
    291,182.62/436,776.34 = 91,498.58/x
  3. Step 3: Cross multiply
    291,182.62x = 436,776.34 × 91,498.58
  4. Step 4: Simplify right side
    291,182.62x = 39,964,414,887.60
  5. Step 5: Solve for x
    x = 39,964,414,887.60/291,182.62
  6. Step 6: Final answer
    x = 137,248.63

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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.