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Finding the Fourth Proportional to 291,677.64, 439,092.12 and 262,349.16

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Solution

The fourth proportional to 291,677.64, 439,092.12 and 262,349.16 is: 394,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,677.64 : 439,092.12 = 262,349.16 : x
  2. Step 2: Convert to fraction form
    291,677.64/439,092.12 = 262,349.16/x
  3. Step 3: Cross multiply
    291,677.64x = 439,092.12 × 262,349.16
  4. Step 4: Simplify right side
    291,677.64x = 115,195,448,844.62
  5. Step 5: Solve for x
    x = 115,195,448,844.62/291,677.64
  6. Step 6: Final answer
    x = 394,940.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.